Units
Translation components API.
See the Weblate's Web API documentation for detailed description of the API.
GET /api/translations/documentation/articlesserial-uart_index/en/units/?format=api&page=4
{ "count": 392, "next": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/units/?format=api&page=5", "previous": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/units/?format=api&page=3", "results": [ { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "When two devices that are both DTE or both DCE must be connected together without a modem or a similar media translator between them, a NULL modem must be used. The NULL modem electrically re-arranges the cabling so that the transmitter output is connected to the receiver input on the other device, and vice versa. Similar translations are performed on all of the control signals so that each device will see what it thinks are DCE (or DTE) signals from the other device." ], "previous_source": "", "target": [ "When two devices that are both DTE or both DCE must be connected together without a modem or a similar media translator between them, a NULL modem must be used. The NULL modem electrically re-arranges the cabling so that the transmitter output is connected to the receiver input on the other device, and vice versa. Similar translations are performed on all of the control signals so that each device will see what it thinks are DCE (or DTE) signals from the other device." ], "id_hash": -455835404744142342, "content_hash": -455835404744142342, "location": "documentation/content/en/articles/serial-uart/_index.adoc:180", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 46, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 83, "source_unit": "https://translate-dev.freebsd.org/api/units/612045/?format=api", "priority": 100, "id": 612045, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=79ac8c1d502dd1fa", "url": "https://translate-dev.freebsd.org/api/units/612045/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:15.088112Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "The number of signals generated by the DTE and DCE devices are not symmetrical. The DTE device generates fewer signals for the DCE device than the DTE device receives from the DCE." ], "previous_source": "", "target": [ "The number of signals generated by the DTE and DCE devices are not symmetrical. The DTE device generates fewer signals for the DCE device than the DTE device receives from the DCE." ], "id_hash": 2868070015302025344, "content_hash": 2868070015302025344, "location": "documentation/content/en/articles/serial-uart/_index.adoc:183", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 47, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 32, "source_unit": "https://translate-dev.freebsd.org/api/units/612047/?format=api", "priority": 100, "id": 612047, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=a7cd6e7bb506c080", "url": "https://translate-dev.freebsd.org/api/units/612047/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:15.186424Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "In the IBM Personal Computer and similar systems, a subset of RS232-C signals are provided via nine pin connectors (DB9). The signals that are not included on the PC connector deal mainly with synchronous operation, and this transmission mode is not supported by the UART that IBM selected for use in the IBM PC." ], "previous_source": "", "target": [ "In the IBM Personal Computer and similar systems, a subset of RS232-C signals are provided via nine pin connectors (DB9). The signals that are not included on the PC connector deal mainly with synchronous operation, and this transmission mode is not supported by the UART that IBM selected for use in the IBM PC." ], "id_hash": 3357994154111324280, "content_hash": 3357994154111324280, "location": "documentation/content/en/articles/serial-uart/_index.adoc:190", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 50, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 54, "source_unit": "https://translate-dev.freebsd.org/api/units/612049/?format=api", "priority": 100, "id": 612049, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=ae99fde449a4d078", "url": "https://translate-dev.freebsd.org/api/units/612049/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:15.567244Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Depending on the computer manufacturer, a DB25, a DB9, or both types of connector may be used for RS232-C communications. (The IBM PC also uses a DB25 connector for the parallel printer interface which causes some confusion.)" ], "previous_source": "", "target": [ "Depending on the computer manufacturer, a DB25, a DB9, or both types of connector may be used for RS232-C communications. (The IBM PC also uses a DB25 connector for the parallel printer interface which causes some confusion.)" ], "id_hash": -3191601333573514483, "content_hash": -3191601333573514483, "location": "documentation/content/en/articles/serial-uart/_index.adoc:193", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 51, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 37, "source_unit": "https://translate-dev.freebsd.org/api/units/612051/?format=api", "priority": 100, "id": 612051, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=53b5277f37b00b0d", "url": "https://translate-dev.freebsd.org/api/units/612051/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:15.864722Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Baud is a measurement of transmission speed in asynchronous communication. Due to advances in modem communication technology, this term is frequently misused when describing the data rates in newer devices." ], "previous_source": "", "target": [ "Baud is a measurement of transmission speed in asynchronous communication. Due to advances in modem communication technology, this term is frequently misused when describing the data rates in newer devices." ], "id_hash": -4031745727010472965, "content_hash": -4031745727010472965, "location": "documentation/content/en/articles/serial-uart/_index.adoc:412", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 171, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 30, "source_unit": "https://translate-dev.freebsd.org/api/units/612053/?format=api", "priority": 100, "id": 612053, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=480c5c9f54d77bfb", "url": "https://translate-dev.freebsd.org/api/units/612053/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:16.680337Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Traditionally, a Baud Rate represents the number of bits that are actually being sent over the media, not the amount of data that is actually moved from one DTE device to the other. The Baud count includes the overhead bits Start, Stop and Parity that are generated by the sending UART and removed by the receiving UART. This means that seven-bit words of data actually take 10 bits to be completely transmitted. Therefore, a modem capable of moving 300 bits per second from one place to another can normally only move 30 7-bit words if Parity is used and one Start and Stop bit are present." ], "previous_source": "", "target": [ "Traditionally, a Baud Rate represents the number of bits that are actually being sent over the media, not the amount of data that is actually moved from one DTE device to the other. The Baud count includes the overhead bits Start, Stop and Parity that are generated by the sending UART and removed by the receiving UART. This means that seven-bit words of data actually take 10 bits to be completely transmitted. Therefore, a modem capable of moving 300 bits per second from one place to another can normally only move 30 7-bit words if Parity is used and one Start and Stop bit are present." ], "id_hash": -1046950814288542134, "content_hash": -1046950814288542134, "location": "documentation/content/en/articles/serial-uart/_index.adoc:417", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 172, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 106, "source_unit": "https://translate-dev.freebsd.org/api/units/612055/?format=api", "priority": 100, "id": 612055, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=71787bc80906864a", "url": "https://translate-dev.freebsd.org/api/units/612055/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:16.853956Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "The formula for converting bytes per second into a baud rate and vice versa was simple until error-correcting modems came along. These modems receive the serial stream of bits from the UART in the host computer (even when internal modems are used the data is still frequently serialized) and converts the bits back into bytes. These bytes are then combined into packets and sent over the phone line using a Synchronous transmission method. This means that the Stop, Start, and Parity bits added by the UART in the DTE (the computer) were removed by the modem before transmission by the sending modem. When these bytes are received by the remote modem, the remote modem adds Start, Stop and Parity bits to the words, converts them to a serial format and then sends them to the receiving UART in the remote computer, who then strips the Start, Stop and Parity bits." ], "previous_source": "", "target": [ "The formula for converting bytes per second into a baud rate and vice versa was simple until error-correcting modems came along. These modems receive the serial stream of bits from the UART in the host computer (even when internal modems are used the data is still frequently serialized) and converts the bits back into bytes. These bytes are then combined into packets and sent over the phone line using a Synchronous transmission method. This means that the Stop, Start, and Parity bits added by the UART in the DTE (the computer) were removed by the modem before transmission by the sending modem. When these bytes are received by the remote modem, the remote modem adds Start, Stop and Parity bits to the words, converts them to a serial format and then sends them to the receiving UART in the remote computer, who then strips the Start, Stop and Parity bits." ], "id_hash": -8177532544230128820, "content_hash": -8177532544230128820, "location": "documentation/content/en/articles/serial-uart/_index.adoc:425", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 174, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 150, "source_unit": "https://translate-dev.freebsd.org/api/units/612057/?format=api", "priority": 100, "id": 612057, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=0e83917a39f7834c", "url": "https://translate-dev.freebsd.org/api/units/612057/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:17.090437Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "The reason all these extra conversions are done is so that the two modems can perform error correction, which means that the receiving modem is able to ask the sending modem to resend a block of data that was not received with the correct checksum. This checking is handled by the modems, and the DTE devices are usually unaware that the process is occurring." ], "previous_source": "", "target": [ "The reason all these extra conversions are done is so that the two modems can perform error correction, which means that the receiving modem is able to ask the sending modem to resend a block of data that was not received with the correct checksum. This checking is handled by the modems, and the DTE devices are usually unaware that the process is occurring." ], "id_hash": 6399786757381021064, "content_hash": 6399786757381021064, "location": "documentation/content/en/articles/serial-uart/_index.adoc:428", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 175, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 64, "source_unit": "https://translate-dev.freebsd.org/api/units/612059/?format=api", "priority": 100, "id": 612059, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=d8d09c25f7f1dd88", "url": "https://translate-dev.freebsd.org/api/units/612059/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:17.297623Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "By striping the Start, Stop and Parity bits, the additional bits of data that the two modems must share between themselves to perform error-correction are mostly concealed from the effective transmission rate seen by the sending and receiving DTE equipment. For example, if a modem sends ten 7-bit words to another modem without including the Start, Stop and Parity bits, the sending modem will be able to add 30 bits of its own information that the receiving modem can use to do error-correction without impacting the transmission speed of the real data." ], "previous_source": "", "target": [ "By striping the Start, Stop and Parity bits, the additional bits of data that the two modems must share between themselves to perform error-correction are mostly concealed from the effective transmission rate seen by the sending and receiving DTE equipment. For example, if a modem sends ten 7-bit words to another modem without including the Start, Stop and Parity bits, the sending modem will be able to add 30 bits of its own information that the receiving modem can use to do error-correction without impacting the transmission speed of the real data." ], "id_hash": -2463283758099900890, "content_hash": -2463283758099900890, "location": "documentation/content/en/articles/serial-uart/_index.adoc:431", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 176, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 92, "source_unit": "https://translate-dev.freebsd.org/api/units/612061/?format=api", "priority": 100, "id": 612061, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=5dd0a87919775626", "url": "https://translate-dev.freebsd.org/api/units/612061/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:17.460526Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "The use of the term Baud is further confused by modems that perform compression. A single 8-bit word passed over the telephone line might represent a dozen words that were transmitted to the sending modem. The receiving modem will expand the data back to its original content and pass that data to the receiving DTE." ], "previous_source": "", "target": [ "The use of the term Baud is further confused by modems that perform compression. A single 8-bit word passed over the telephone line might represent a dozen words that were transmitted to the sending modem. The receiving modem will expand the data back to its original content and pass that data to the receiving DTE." ], "id_hash": -6411724131958642930, "content_hash": -6411724131958642930, "location": "documentation/content/en/articles/serial-uart/_index.adoc:435", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 177, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 55, "source_unit": "https://translate-dev.freebsd.org/api/units/612063/?format=api", "priority": 100, "id": 612063, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=2704fadf6cce270e", "url": "https://translate-dev.freebsd.org/api/units/612063/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:17.552017Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Modern modems also include buffers that allow the rate that bits move across the phone line (DCE to DCE) to be a different speed than the speed that the bits move between the DTE and DCE on both ends of the conversation. Normally the speed between the DTE and DCE is higher than the DCE to DCE speed because of the use of compression by the modems." ], "previous_source": "", "target": [ "Modern modems also include buffers that allow the rate that bits move across the phone line (DCE to DCE) to be a different speed than the speed that the bits move between the DTE and DCE on both ends of the conversation. Normally the speed between the DTE and DCE is higher than the DCE to DCE speed because of the use of compression by the modems." ], "id_hash": -9186161246807352544, "content_hash": -9186161246807352544, "location": "documentation/content/en/articles/serial-uart/_index.adoc:438", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 178, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 67, "source_unit": "https://translate-dev.freebsd.org/api/units/612065/?format=api", "priority": 100, "id": 612065, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=0084330432969b20", "url": "https://translate-dev.freebsd.org/api/units/612065/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:17.635805Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "As the number of bits needed to describe a byte varied during the trip between the two machines plus the differing bits-per-seconds speeds that are used present on the DTE-DCE and DCE-DCE links, the usage of the term Baud to describe the overall communication speed causes problems and can misrepresent the true transmission speed. So Bits Per Second (bps) is the correct term to use to describe the transmission rate seen at the DCE to DCE interface and Baud or Bits Per Second are acceptable terms to use when a connection is made between two systems with a wired connection, or if a modem is in use that is not performing error-correction or compression." ], "previous_source": "", "target": [ "As the number of bits needed to describe a byte varied during the trip between the two machines plus the differing bits-per-seconds speeds that are used present on the DTE-DCE and DCE-DCE links, the usage of the term Baud to describe the overall communication speed causes problems and can misrepresent the true transmission speed. So Bits Per Second (bps) is the correct term to use to describe the transmission rate seen at the DCE to DCE interface and Baud or Bits Per Second are acceptable terms to use when a connection is made between two systems with a wired connection, or if a modem is in use that is not performing error-correction or compression." ], "id_hash": 2873045521557772530, "content_hash": 2873045521557772530, "location": "documentation/content/en/articles/serial-uart/_index.adoc:441", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 179, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 114, "source_unit": "https://translate-dev.freebsd.org/api/units/612067/?format=api", "priority": 100, "id": 612067, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=a7df1bae07fa58f2", "url": "https://translate-dev.freebsd.org/api/units/612067/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:17.710785Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Modern high speed modems (2400, 9600, 14,400, and 19,200bps) in reality still operate at or below 2400 baud, or more accurately, 2400 Symbols per second. High speed modem are able to encode more bits of data into each Symbol using a technique called Constellation Stuffing, which is why the effective bits per second rate of the modem is higher, but the modem continues to operate within the limited audio bandwidth that the telephone system provides. Modems operating at 28,800 and higher speeds have variable Symbol rates, but the technique is the same." ], "previous_source": "", "target": [ "Modern high speed modems (2400, 9600, 14,400, and 19,200bps) in reality still operate at or below 2400 baud, or more accurately, 2400 Symbols per second. High speed modem are able to encode more bits of data into each Symbol using a technique called Constellation Stuffing, which is why the effective bits per second rate of the modem is higher, but the modem continues to operate within the limited audio bandwidth that the telephone system provides. Modems operating at 28,800 and higher speeds have variable Symbol rates, but the technique is the same." ], "id_hash": 3039289370688886369, "content_hash": 3039289370688886369, "location": "documentation/content/en/articles/serial-uart/_index.adoc:445", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 180, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 92, "source_unit": "https://translate-dev.freebsd.org/api/units/612069/?format=api", "priority": 100, "id": 612069, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=aa2db9946d881661", "url": "https://translate-dev.freebsd.org/api/units/612069/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:17.866387Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Starting with the original IBM Personal Computer, IBM selected the National Semiconductor INS8250 UART for use in the IBM PC Parallel/Serial Adapter. Subsequent generations of compatible computers from IBM and other vendors continued to use the INS8250 or improved versions of the National Semiconductor UART family." ], "previous_source": "", "target": [ "Starting with the original IBM Personal Computer, IBM selected the National Semiconductor INS8250 UART for use in the IBM PC Parallel/Serial Adapter. Subsequent generations of compatible computers from IBM and other vendors continued to use the INS8250 or improved versions of the National Semiconductor UART family." ], "id_hash": -888320163432227516, "content_hash": -888320163432227516, "location": "documentation/content/en/articles/serial-uart/_index.adoc:450", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 182, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 46, "source_unit": "https://translate-dev.freebsd.org/api/units/612071/?format=api", "priority": 100, "id": 612071, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=73ac0d8493ce1d44", "url": "https://translate-dev.freebsd.org/api/units/612071/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:17.971288Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "This part was used in the original IBM PC and IBM PC/XT. The original name for this part was the INS8250 ACE (Asynchronous Communications Element) and it is made from NMOS technology." ], "previous_source": "", "target": [ "This part was used in the original IBM PC and IBM PC/XT. The original name for this part was the INS8250 ACE (Asynchronous Communications Element) and it is made from NMOS technology." ], "id_hash": -8877987869751786624, "content_hash": -8877987869751786624, "location": "documentation/content/en/articles/serial-uart/_index.adoc:472", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 187, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 32, "source_unit": "https://translate-dev.freebsd.org/api/units/612073/?format=api", "priority": 100, "id": 612073, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=04cb0d11ef37c380", "url": "https://translate-dev.freebsd.org/api/units/612073/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:18.217755Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "The 8250 uses eight I/O ports and has a one-byte send and a one-byte receive buffer. This original UART has several race conditions and other flaws. The original IBM BIOS includes code to work around these flaws, but this made the BIOS dependent on the flaws being present, so subsequent parts like the 8250A, 16450 or 16550 could not be used in the original IBM PC or IBM PC/XT." ], "previous_source": "", "target": [ "The 8250 uses eight I/O ports and has a one-byte send and a one-byte receive buffer. This original UART has several race conditions and other flaws. The original IBM BIOS includes code to work around these flaws, but this made the BIOS dependent on the flaws being present, so subsequent parts like the 8250A, 16450 or 16550 could not be used in the original IBM PC or IBM PC/XT." ], "id_hash": -1437926440090222199, "content_hash": -1437926440090222199, "location": "documentation/content/en/articles/serial-uart/_index.adoc:476", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 188, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 69, "source_unit": "https://translate-dev.freebsd.org/api/units/612075/?format=api", "priority": 100, "id": 612075, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=6c0b75856d47c189", "url": "https://translate-dev.freebsd.org/api/units/612075/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:18.342924Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "This is the slower speed of the INS8250 made from NMOS technology. It contains the same problems as the original INS8250." ], "previous_source": "", "target": [ "This is the slower speed of the INS8250 made from NMOS technology. It contains the same problems as the original INS8250." ], "id_hash": 7361271889622895506, "content_hash": 7361271889622895506, "location": "documentation/content/en/articles/serial-uart/_index.adoc:479", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 190, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 21, "source_unit": "https://translate-dev.freebsd.org/api/units/612077/?format=api", "priority": 100, "id": 612077, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=e6287dc82c0a8b92", "url": "https://translate-dev.freebsd.org/api/units/612077/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:18.692594Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "An improved version of the INS8250 using XMOS technology with various functional flaws corrected. The INS8250A was used initially in PC clone computers by vendors who used \"clean\" BIOS designs. Due to the corrections in the chip, this part could not be used with a BIOS compatible with the INS8250 or INS8250B." ], "previous_source": "", "target": [ "An improved version of the INS8250 using XMOS technology with various functional flaws corrected. The INS8250A was used initially in PC clone computers by vendors who used \"clean\" BIOS designs. Due to the corrections in the chip, this part could not be used with a BIOS compatible with the INS8250 or INS8250B." ], "id_hash": 5652017451142958538, "content_hash": 5652017451142958538, "location": "documentation/content/en/articles/serial-uart/_index.adoc:484", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 192, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 52, "source_unit": "https://translate-dev.freebsd.org/api/units/612079/?format=api", "priority": 100, "id": 612079, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=ce6fffed17af4dca", "url": "https://translate-dev.freebsd.org/api/units/612079/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:19.050265Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Same as NS8250A with improvements so it can be used with faster CPU bus designs. IBM used this part in the IBM AT and updated the IBM BIOS to no longer rely on the bugs in the INS8250." ], "previous_source": "", "target": [ "Same as NS8250A with improvements so it can be used with faster CPU bus designs. IBM used this part in the IBM AT and updated the IBM BIOS to no longer rely on the bugs in the INS8250." ], "id_hash": 8545697081473074091, "content_hash": 8545697081473074091, "location": "documentation/content/en/articles/serial-uart/_index.adoc:491", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 196, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 38, "source_unit": "https://translate-dev.freebsd.org/api/units/612081/?format=api", "priority": 100, "id": 612081, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=f6986a37f34b83ab", "url": "https://translate-dev.freebsd.org/api/units/612081/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:19.368868Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Same as NS16550 with the buffer flaws corrected. The 16550A and its successors have become the most popular UART design in the PC industry, mainly due to its ability to reliably handle higher data rates on operating systems with sluggish interrupt response times." ], "previous_source": "", "target": [ "Same as NS16550 with the buffer flaws corrected. The 16550A and its successors have become the most popular UART design in the PC industry, mainly due to its ability to reliably handle higher data rates on operating systems with sluggish interrupt response times." ], "id_hash": 7723672783766655234, "content_hash": 7723672783766655234, "location": "documentation/content/en/articles/serial-uart/_index.adoc:501", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 202, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 43, "source_unit": "https://translate-dev.freebsd.org/api/units/612083/?format=api", "priority": 100, "id": 612083, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=eb2fff799dc39102", "url": "https://translate-dev.freebsd.org/api/units/612083/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:19.979932Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Same as NS16550A with subtle flaws corrected. This is revision D of the 16550 family and is the latest design available from National Semiconductor." ], "previous_source": "", "target": [ "Same as NS16550A with subtle flaws corrected. This is revision D of the 16550 family and is the latest design available from National Semiconductor." ], "id_hash": -4844942222910711222, "content_hash": -4844942222910711222, "location": "documentation/content/en/articles/serial-uart/_index.adoc:508", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 206, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 24, "source_unit": "https://translate-dev.freebsd.org/api/units/612085/?format=api", "priority": 100, "id": 612085, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=3cc34eb7c61d9a4a", "url": "https://translate-dev.freebsd.org/api/units/612085/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:20.253246Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "National reorganized their part numbering system a few years ago, and the NS16550AFN no longer exists by that name. (If you have a NS16550AFN, look at the date code on the part, which is a four digit number that usually starts with a nine. The first two digits of the number are the year, and the last two digits are the week in that year when the part was packaged. If you have a NS16550AFN, it is probably a few years old.)" ], "previous_source": "", "target": [ "National reorganized their part numbering system a few years ago, and the NS16550AFN no longer exists by that name. (If you have a NS16550AFN, look at the date code on the part, which is a four digit number that usually starts with a nine. The first two digits of the number are the year, and the last two digits are the week in that year when the part was packaged. If you have a NS16550AFN, it is probably a few years old.)" ], "id_hash": 1259957389909846717, "content_hash": 1259957389909846717, "location": "documentation/content/en/articles/serial-uart/_index.adoc:515", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 208, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 82, "source_unit": "https://translate-dev.freebsd.org/api/units/612087/?format=api", "priority": 100, "id": 612087, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=917c449211b46abd", "url": "https://translate-dev.freebsd.org/api/units/612087/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:20.460554Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "The new numbers are like PC16550DV, with minor differences in the suffix letters depending on the package material and its shape. (A description of the numbering system can be found below.)" ], "previous_source": "", "target": [ "The new numbers are like PC16550DV, with minor differences in the suffix letters depending on the package material and its shape. (A description of the numbering system can be found below.)" ], "id_hash": -3683848605781295944, "content_hash": -3683848605781295944, "location": "documentation/content/en/articles/serial-uart/_index.adoc:518", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 209, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 31, "source_unit": "https://translate-dev.freebsd.org/api/units/612089/?format=api", "priority": 100, "id": 612089, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=4ce05735fe167cb8", "url": "https://translate-dev.freebsd.org/api/units/612089/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:20.587538Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "The _g_ is the product grade field. If an `I` precedes the package-type letter, it indicates an \"industrial\" grade part, which has higher specs than a standard part but not as high as Military Specification (Milspec) component. This is an optional field." ], "previous_source": "", "target": [ "The _g_ is the product grade field. If an `I` precedes the package-type letter, it indicates an \"industrial\" grade part, which has higher specs than a standard part but not as high as Military Specification (Milspec) component. This is an optional field." ], "id_hash": -8822591046837927433, "content_hash": -8822591046837927433, "location": "documentation/content/en/articles/serial-uart/_index.adoc:551", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 225, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 42, "source_unit": "https://translate-dev.freebsd.org/api/units/612091/?format=api", "priority": 100, "id": 612091, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=058fdc2fdeaf01f7", "url": "https://translate-dev.freebsd.org/api/units/612091/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.033426Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Over the years, the 8250, 8250A, 16450 and 16550 have been licensed or copied by other chip vendors. In the case of the 8250, 8250A and 16450, the exact circuit (the \"megacell\") was licensed to many vendors, including Western Digital and Intel. Other vendors reverse-engineered the part or produced emulations that had similar behavior." ], "previous_source": "", "target": [ "Over the years, the 8250, 8250A, 16450 and 16550 have been licensed or copied by other chip vendors. In the case of the 8250, 8250A and 16450, the exact circuit (the \"megacell\") was licensed to many vendors, including Western Digital and Intel. Other vendors reverse-engineered the part or produced emulations that had similar behavior." ], "id_hash": 8810025506807655405, "content_hash": 8810025506807655405, "location": "documentation/content/en/articles/serial-uart/_index.adoc:559", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 228, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 54, "source_unit": "https://translate-dev.freebsd.org/api/units/612093/?format=api", "priority": 100, "id": 612093, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=fa437f855b66abed", "url": "https://translate-dev.freebsd.org/api/units/612093/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.112825Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "In internal modems, the modem designer will frequently emulate the 8250A/16450 with the modem microprocessor, and the emulated UART will frequently have a hidden buffer consisting of several hundred bytes. Due to the size of the buffer, these emulations can be as reliable as a 16550A in their ability to handle high speed data. However, most operating systems will still report that the UART is only a 8250A or 16450, and may not make effective use of the extra buffering present in the emulated UART unless special drivers are used." ], "previous_source": "", "target": [ "In internal modems, the modem designer will frequently emulate the 8250A/16450 with the modem microprocessor, and the emulated UART will frequently have a hidden buffer consisting of several hundred bytes. Due to the size of the buffer, these emulations can be as reliable as a 16550A in their ability to handle high speed data. However, most operating systems will still report that the UART is only a 8250A or 16450, and may not make effective use of the extra buffering present in the emulated UART unless special drivers are used." ], "id_hash": 7497648016975712442, "content_hash": 7497648016975712442, "location": "documentation/content/en/articles/serial-uart/_index.adoc:563", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 229, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 90, "source_unit": "https://translate-dev.freebsd.org/api/units/612095/?format=api", "priority": 100, "id": 612095, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=e80cff25aebfd0ba", "url": "https://translate-dev.freebsd.org/api/units/612095/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.140267Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "A common misconception is that all parts with \"16550A\" written on them are identical in performance. There are differences, and in some cases, outright flaws in most of these 16550A clones." ], "previous_source": "", "target": [ "A common misconception is that all parts with \"16550A\" written on them are identical in performance. There are differences, and in some cases, outright flaws in most of these 16550A clones." ], "id_hash": 8130594466025977635, "content_hash": 8130594466025977635, "location": "documentation/content/en/articles/serial-uart/_index.adoc:568", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 231, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 31, "source_unit": "https://translate-dev.freebsd.org/api/units/612097/?format=api", "priority": 100, "id": 612097, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=f0d5ac96d03c3723", "url": "https://translate-dev.freebsd.org/api/units/612097/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.197583Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "When the NS16550 was developed, the National Semiconductor obtained several patents on the design and they also limited licensing, making it harder for other vendors to provide a chip with similar features. As a result of the patents, reverse-engineered designs and emulations had to avoid infringing the claims covered by the patents. Subsequently, these copies almost never perform exactly the same as the NS16550A or PC16550D, which are the parts most computer and modem makers want to buy but are sometimes unwilling to pay the price required to get the genuine part." ], "previous_source": "", "target": [ "When the NS16550 was developed, the National Semiconductor obtained several patents on the design and they also limited licensing, making it harder for other vendors to provide a chip with similar features. As a result of the patents, reverse-engineered designs and emulations had to avoid infringing the claims covered by the patents. Subsequently, these copies almost never perform exactly the same as the NS16550A or PC16550D, which are the parts most computer and modem makers want to buy but are sometimes unwilling to pay the price required to get the genuine part." ], "id_hash": 7338167820542606884, "content_hash": 7338167820542606884, "location": "documentation/content/en/articles/serial-uart/_index.adoc:572", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 232, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 92, "source_unit": "https://translate-dev.freebsd.org/api/units/612099/?format=api", "priority": 100, "id": 612099, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=e5d668c0e5a4fe24", "url": "https://translate-dev.freebsd.org/api/units/612099/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.234296Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Some of the differences in the clone 16550A parts are unimportant, while others can prevent the device from being used at all with a given operating system or driver. These differences may show up when using other drivers, or when particular combinations of events occur that were not well tested or considered in the Windows(R) driver. This is because most modem vendors and 16550-clone makers use the Microsoft drivers from Windows(R) for Workgroups 3.11 and the Microsoft(R) MS-DOS(R) utility as the primary tests for compatibility with the NS16550A. This over-simplistic criteria means that if a different operating system is used, problems could appear due to subtle differences between the clones and genuine components." ], "previous_source": "", "target": [ "Some of the differences in the clone 16550A parts are unimportant, while others can prevent the device from being used at all with a given operating system or driver. These differences may show up when using other drivers, or when particular combinations of events occur that were not well tested or considered in the Windows(R) driver. This is because most modem vendors and 16550-clone makers use the Microsoft drivers from Windows(R) for Workgroups 3.11 and the Microsoft(R) MS-DOS(R) utility as the primary tests for compatibility with the NS16550A. This over-simplistic criteria means that if a different operating system is used, problems could appear due to subtle differences between the clones and genuine components." ], "id_hash": -5281344146353970409, "content_hash": -5281344146353970409, "location": "documentation/content/en/articles/serial-uart/_index.adoc:577", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 233, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 113, "source_unit": "https://translate-dev.freebsd.org/api/units/612101/?format=api", "priority": 100, "id": 612101, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=36b4e57b0bfba317", "url": "https://translate-dev.freebsd.org/api/units/612101/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.260563Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "National Semiconductor has made available a program named COMTEST that performs compatibility tests independent of any OS drivers. It should be remembered that the purpose of this type of program is to demonstrate the flaws in the products of the competition, so the program will report major as well as extremely subtle differences in behavior in the part being tested." ], "previous_source": "", "target": [ "National Semiconductor has made available a program named COMTEST that performs compatibility tests independent of any OS drivers. It should be remembered that the purpose of this type of program is to demonstrate the flaws in the products of the competition, so the program will report major as well as extremely subtle differences in behavior in the part being tested." ], "id_hash": 6189264082792511039, "content_hash": 6189264082792511039, "location": "documentation/content/en/articles/serial-uart/_index.adoc:580", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 234, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 60, "source_unit": "https://translate-dev.freebsd.org/api/units/612103/?format=api", "priority": 100, "id": 612103, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=d5e4aee423ee763f", "url": "https://translate-dev.freebsd.org/api/units/612103/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.286730Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "In a series of tests performed by the author of this document in 1994, components made by National Semiconductor, TI, StarTech, and CMD as well as megacells and emulations embedded in internal modems were tested with COMTEST. A difference count for some of these components is listed below. Since these tests were performed in 1994, they may not reflect the current performance of the given product from a vendor." ], "previous_source": "", "target": [ "In a series of tests performed by the author of this document in 1994, components made by National Semiconductor, TI, StarTech, and CMD as well as megacells and emulations embedded in internal modems were tested with COMTEST. A difference count for some of these components is listed below. Since these tests were performed in 1994, they may not reflect the current performance of the given product from a vendor." ], "id_hash": -353447867543645909, "content_hash": -353447867543645909, "location": "documentation/content/en/articles/serial-uart/_index.adoc:583", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 235, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 69, "source_unit": "https://translate-dev.freebsd.org/api/units/612105/?format=api", "priority": 100, "id": 612105, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=7b184d098071112b", "url": "https://translate-dev.freebsd.org/api/units/612105/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.310843Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "It should be noted that COMTEST normally aborts when an excessive number or certain types of problems have been detected. As part of this testing, COMTEST was modified so that it would not abort no matter how many differences were encountered." ], "previous_source": "", "target": [ "It should be noted that COMTEST normally aborts when an excessive number or certain types of problems have been detected. As part of this testing, COMTEST was modified so that it would not abort no matter how many differences were encountered." ], "id_hash": -2865114125811915050, "content_hash": -2865114125811915050, "location": "documentation/content/en/articles/serial-uart/_index.adoc:586", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 236, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 41, "source_unit": "https://translate-dev.freebsd.org/api/units/612107/?format=api", "priority": 100, "id": 612107, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=583d11e1f206e6d6", "url": "https://translate-dev.freebsd.org/api/units/612107/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.334188Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "To date, the author of this document has not found any non-National parts that report zero differences using the COMTEST program. It should also be noted that National has had five versions of the 16550 over the years and the newest parts behave a bit differently than the classic NS16550AFN that is considered the benchmark for functionality. COMTEST appears to turn a blind eye to the differences within the National product line and reports no errors on the National parts (except for the original 16550) even when there are official erratas that describe bugs in the A, B and C revisions of the parts, so this bias in COMTEST must be taken into account." ], "previous_source": "", "target": [ "To date, the author of this document has not found any non-National parts that report zero differences using the COMTEST program. It should also be noted that National has had five versions of the 16550 over the years and the newest parts behave a bit differently than the classic NS16550AFN that is considered the benchmark for functionality. COMTEST appears to turn a blind eye to the differences within the National product line and reports no errors on the National parts (except for the original 16550) even when there are official erratas that describe bugs in the A, B and C revisions of the parts, so this bias in COMTEST must be taken into account." ], "id_hash": 5054933597812427489, "content_hash": 5054933597812427489, "location": "documentation/content/en/articles/serial-uart/_index.adoc:632", "context": "", "note": "type: delimited block = 4", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 257, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 114, "source_unit": "https://translate-dev.freebsd.org/api/units/612109/?format=api", "priority": 100, "id": 612109, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=c626bb5334cc0ae1", "url": "https://translate-dev.freebsd.org/api/units/612109/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.382492Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "It is important to understand that a simple count of differences from COMTEST does not reveal a lot about what differences are important and which are not. For example, about half of the differences reported in the two modems listed above that have internal UARTs were caused by the clone UARTs not supporting five- and six-bit character modes. The real 16550, 16450, and 8250 UARTs all support these modes and COMTEST checks the functionality of these modes so over fifty differences are reported. However, almost no modern modem supports five- or six-bit characters, particularly those with error-correction and compression capabilities. This means that the differences related to five- and six-bit character modes can be discounted." ], "previous_source": "", "target": [ "It is important to understand that a simple count of differences from COMTEST does not reveal a lot about what differences are important and which are not. For example, about half of the differences reported in the two modems listed above that have internal UARTs were caused by the clone UARTs not supporting five- and six-bit character modes. The real 16550, 16450, and 8250 UARTs all support these modes and COMTEST checks the functionality of these modes so over fifty differences are reported. However, almost no modern modem supports five- or six-bit characters, particularly those with error-correction and compression capabilities. This means that the differences related to five- and six-bit character modes can be discounted." ], "id_hash": -8376534902882855852, "content_hash": -8376534902882855852, "location": "documentation/content/en/articles/serial-uart/_index.adoc:639", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 258, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 115, "source_unit": "https://translate-dev.freebsd.org/api/units/612111/?format=api", "priority": 100, "id": 612111, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=0bc091e2f9019454", "url": "https://translate-dev.freebsd.org/api/units/612111/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.412890Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Many of the differences COMTEST reports have to do with timing. In many of the clone designs, when the host reads from one port, the status bits in some other port may not update in the same amount of time (some faster, some slower) as a _real_ NS16550AFN and COMTEST looks for these differences. This means that the number of differences can be misleading in that one device may only have one or two differences but they are extremely serious, and some other device that updates the status registers faster or slower than the reference part (that would probably never affect the operation of a properly written driver) could have dozens of differences reported." ], "previous_source": "", "target": [ "Many of the differences COMTEST reports have to do with timing. In many of the clone designs, when the host reads from one port, the status bits in some other port may not update in the same amount of time (some faster, some slower) as a _real_ NS16550AFN and COMTEST looks for these differences. This means that the number of differences can be misleading in that one device may only have one or two differences but they are extremely serious, and some other device that updates the status registers faster or slower than the reference part (that would probably never affect the operation of a properly written driver) could have dozens of differences reported." ], "id_hash": 9097977146554623126, "content_hash": 9097977146554623126, "location": "documentation/content/en/articles/serial-uart/_index.adoc:643", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 259, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 114, "source_unit": "https://translate-dev.freebsd.org/api/units/612113/?format=api", "priority": 100, "id": 612113, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=fe428202fb02a496", "url": "https://translate-dev.freebsd.org/api/units/612113/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.440706Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "If you run COMTEST on a 16550 that is in a modem or a modem is attached to the serial port, you need to first issue a ATE0&W command to the modem so that the modem will not echo any of the test characters. If you forget to do this, COMTEST will report at least this one difference:" ], "previous_source": "", "target": [ "If you run COMTEST on a 16550 that is in a modem or a modem is attached to the serial port, you need to first issue a ATE0&W command to the modem so that the modem will not echo any of the test characters. If you forget to do this, COMTEST will report at least this one difference:" ], "id_hash": -6878429016777717885, "content_hash": -6878429016777717885, "location": "documentation/content/en/articles/serial-uart/_index.adoc:648", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 261, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 58, "source_unit": "https://translate-dev.freebsd.org/api/units/612115/?format=api", "priority": 100, "id": 612115, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=208ae940b2398783", "url": "https://translate-dev.freebsd.org/api/units/612115/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.497764Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "The 8250/16450/16550 UART occupies eight contiguous I/O port addresses. In the IBM PC, there are two defined locations for these eight ports and they are known collectively as [.filename]#COM1# and [.filename]#COM2#. The makers of PC-clones and add-on cards have created two additional areas known as [.filename]#COM3# and [.filename]#COM4#, but these extra COM ports conflict with other hardware on some systems. The most common conflict is with video adapters that provide IBM 8514 emulation." ], "previous_source": "", "target": [ "The 8250/16450/16550 UART occupies eight contiguous I/O port addresses. In the IBM PC, there are two defined locations for these eight ports and they are known collectively as [.filename]#COM1# and [.filename]#COM2#. The makers of PC-clones and add-on cards have created two additional areas known as [.filename]#COM3# and [.filename]#COM4#, but these extra COM ports conflict with other hardware on some systems. The most common conflict is with video adapters that provide IBM 8514 emulation." ], "id_hash": -1767109212552524123, "content_hash": -1767109212552524123, "location": "documentation/content/en/articles/serial-uart/_index.adoc:660", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 264, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 73, "source_unit": "https://translate-dev.freebsd.org/api/units/612117/?format=api", "priority": 100, "id": 612117, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=6779f788a27c8ea5", "url": "https://translate-dev.freebsd.org/api/units/612117/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.553494Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "[.filename]#COM1# is located from 0x3f8 to 0x3ff and normally uses IRQ 4. [.filename]#COM2# is located from 0x2f8 to 0x2ff and normally uses IRQ 3. [.filename]#COM3# is located from 0x3e8 to 0x3ef and has no standardized IRQ. [.filename]#COM4# is located from 0x2e8 to 0x2ef and has no standardized IRQ." ], "previous_source": "", "target": [ "[.filename]#COM1# is located from 0x3f8 to 0x3ff and normally uses IRQ 4. [.filename]#COM2# is located from 0x2f8 to 0x2ff and normally uses IRQ 3. [.filename]#COM3# is located from 0x3e8 to 0x3ef and has no standardized IRQ. [.filename]#COM4# is located from 0x2e8 to 0x2ef and has no standardized IRQ." ], "id_hash": -1952908467064674249, "content_hash": -1952908467064674249, "location": "documentation/content/en/articles/serial-uart/_index.adoc:665", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 265, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 48, "source_unit": "https://translate-dev.freebsd.org/api/units/612119/?format=api", "priority": 100, "id": 612119, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=64e5e0189dc1e837", "url": "https://translate-dev.freebsd.org/api/units/612119/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.579664Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Although National Semiconductor has not offered any components compatible with the 16550 that provide additional features, various other vendors have. Some of these components are described below. It should be understood that to effectively utilize these improvements, drivers may have to be provided by the chip vendor since most of the popular operating systems do not support features beyond those provided by the 16550." ], "previous_source": "", "target": [ "Although National Semiconductor has not offered any components compatible with the 16550 that provide additional features, various other vendors have. Some of these components are described below. It should be understood that to effectively utilize these improvements, drivers may have to be provided by the chip vendor since most of the popular operating systems do not support features beyond those provided by the 16550." ], "id_hash": -3611316570805637901, "content_hash": -3611316570805637901, "location": "documentation/content/en/articles/serial-uart/_index.adoc:821", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 297, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 64, "source_unit": "https://translate-dev.freebsd.org/api/units/612121/?format=api", "priority": 100, "id": 612121, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=4de206b661a5ecf3", "url": "https://translate-dev.freebsd.org/api/units/612121/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.704283Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "By default this part is similar to the NS16550A, but an extended 32-byte send and receive buffer can be optionally enabled. Made by StarTech." ], "previous_source": "", "target": [ "By default this part is similar to the NS16550A, but an extended 32-byte send and receive buffer can be optionally enabled. Made by StarTech." ], "id_hash": 8568982993955105021, "content_hash": 8568982993955105021, "location": "documentation/content/en/articles/serial-uart/_index.adoc:825", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 299, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 24, "source_unit": "https://translate-dev.freebsd.org/api/units/612123/?format=api", "priority": 100, "id": 612123, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=f6eb24a1f10ea8fd", "url": "https://translate-dev.freebsd.org/api/units/612123/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.770985Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "By default this part behaves similar to the NS16550A, but an extended 64-byte send and receive buffer can be optionally enabled. Made by Texas Instruments." ], "previous_source": "", "target": [ "By default this part behaves similar to the NS16550A, but an extended 64-byte send and receive buffer can be optionally enabled. Made by Texas Instruments." ], "id_hash": 3402810250809165977, "content_hash": 3402810250809165977, "location": "documentation/content/en/articles/serial-uart/_index.adoc:829", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 301, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 25, "source_unit": "https://translate-dev.freebsd.org/api/units/612125/?format=api", "priority": 100, "id": 612125, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=af3935e4ed89c899", "url": "https://translate-dev.freebsd.org/api/units/612125/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.820695Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "This proprietary plug-in card contains a 2048-byte send and receive buffer, and supports data rates to 230.4Kbit/sec. Made by Hayes." ], "previous_source": "", "target": [ "This proprietary plug-in card contains a 2048-byte send and receive buffer, and supports data rates to 230.4Kbit/sec. Made by Hayes." ], "id_hash": -6260229655398228469, "content_hash": -6260229655398228469, "location": "documentation/content/en/articles/serial-uart/_index.adoc:833", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 303, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 20, "source_unit": "https://translate-dev.freebsd.org/api/units/612127/?format=api", "priority": 100, "id": 612127, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=291f324be99f5e0b", "url": "https://translate-dev.freebsd.org/api/units/612127/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.916539Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "In addition to these \"dumb\" UARTs, many vendors produce intelligent serial communication boards. This type of design usually provides a microprocessor that interfaces with several UARTs, processes and buffers the data, and then alerts the main PC processor when necessary. As the UARTs are not directly accessed by the PC processor in this type of communication system, it is not necessary for the vendor to use UARTs that are compatible with the 8250, 16450, or the 16550 UART. This leaves the designer free to components that may have better performance characteristics." ], "previous_source": "", "target": [ "In addition to these \"dumb\" UARTs, many vendors produce intelligent serial communication boards. This type of design usually provides a microprocessor that interfaces with several UARTs, processes and buffers the data, and then alerts the main PC processor when necessary. As the UARTs are not directly accessed by the PC processor in this type of communication system, it is not necessary for the vendor to use UARTs that are compatible with the 8250, 16450, or the 16550 UART. This leaves the designer free to components that may have better performance characteristics." ], "id_hash": 4741085825435846517, "content_hash": 4741085825435846517, "location": "documentation/content/en/articles/serial-uart/_index.adoc:838", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 304, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 91, "source_unit": "https://translate-dev.freebsd.org/api/units/612129/?format=api", "priority": 100, "id": 612129, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=c1cbb8705abe4775", "url": "https://translate-dev.freebsd.org/api/units/612129/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:21.949323Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "The [.filename]#sio# driver provides support for NS8250-, NS16450-, NS16550 and NS16550A-based EIA RS-232C (CCITT V.24) communications interfaces. Several multiport cards are supported as well. See the man:sio[4] manual page for detailed technical documentation." ], "previous_source": "", "target": [ "The [.filename]#sio# driver provides support for NS8250-, NS16450-, NS16550 and NS16550A-based EIA RS-232C (CCITT V.24) communications interfaces. Several multiport cards are supported as well. See the man:sio[4] manual page for detailed technical documentation." ], "id_hash": 3324899950489850196, "content_hash": 3324899950489850196, "location": "documentation/content/en/articles/serial-uart/_index.adoc:845", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 306, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 33, "source_unit": "https://translate-dev.freebsd.org/api/units/612131/?format=api", "priority": 100, "id": 612131, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=ae246ae38ea95154", "url": "https://translate-dev.freebsd.org/api/units/612131/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:22.186359Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Here is a config snippet from a machine with a Digi International PC/8 with 16550. It has 8 modems connected to these 8 lines, and they work just great. Do not forget to add `options COM_MULTIPORT` or it will not work very well!" ], "previous_source": "", "target": [ "Here is a config snippet from a machine with a Digi International PC/8 with 16550. It has 8 modems connected to these 8 lines, and they work just great. Do not forget to add `options COM_MULTIPORT` or it will not work very well!" ], "id_hash": 3051768120711146645, "content_hash": 3051768120711146645, "location": "documentation/content/en/articles/serial-uart/_index.adoc:853", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 309, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 43, "source_unit": "https://translate-dev.freebsd.org/api/units/612133/?format=api", "priority": 100, "id": 612133, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=aa5a0eefd3d96c95", "url": "https://translate-dev.freebsd.org/api/units/612133/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:22.373914Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "One important note - the actual UART chips for the Boca 16 are in the connector box, not on the internal board itself. So if you have it unplugged, probes of those ports will fail. I have never tested booting with the box unplugged and plugging it back in, and I suggest you do not either." ], "previous_source": "", "target": [ "One important note - the actual UART chips for the Boca 16 are in the connector box, not on the internal board itself. So if you have it unplugged, probes of those ports will fail. I have never tested booting with the box unplugged and plugging it back in, and I suggest you do not either." ], "id_hash": 7315359164037205652, "content_hash": 7315359164037205652, "location": "documentation/content/en/articles/serial-uart/_index.adoc:880", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 317, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 56, "source_unit": "https://translate-dev.freebsd.org/api/units/612135/?format=api", "priority": 100, "id": 612135, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=e5856066b8d60e94", "url": "https://translate-dev.freebsd.org/api/units/612135/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:22.989317Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "indicates that the master port is sio16. If I added another board and assigned sio17 through sio28, the flags for all 16 ports on _that_ board would be 0x1C05, where 1C indicates the minor number of the master port. Do not change the 05 setting." ], "previous_source": "", "target": [ "indicates that the master port is sio16. If I added another board and assigned sio17 through sio28, the flags for all 16 ports on _that_ board would be 0x1C05, where 1C indicates the minor number of the master port. Do not change the 05 setting." ], "id_hash": 8297689585290431382, "content_hash": 8297689585290431382, "location": "documentation/content/en/articles/serial-uart/_index.adoc:918", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 326, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 45, "source_unit": "https://translate-dev.freebsd.org/api/units/612141/?format=api", "priority": 100, "id": 612141, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=f32750b6fbb1cb96", "url": "https://translate-dev.freebsd.org/api/units/612141/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:23.360710Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Usually the only option to support these kind of boards is to use a distinct IRQ for each port. For example, if your CPU board has an on-board [.filename]#COM1# port (aka [.filename]#sio0#-I/O address 0x3F8 and IRQ 4) and you have an extension board with two UARTs, you will commonly need to configure them as [.filename]#COM2# (aka [.filename]#sio1#-I/O address 0x2F8 and IRQ 3), and the third port (aka [.filename]#sio2#) as I/O 0x3E8 and IRQ 5. Obviously this is a waste of IRQ resources, as it should be basically possible to run both extension board ports using a single IRQ with the `COM_MULTIPORT` configuration described in the previous sections." ], "previous_source": "", "target": [ "Usually the only option to support these kind of boards is to use a distinct IRQ for each port. For example, if your CPU board has an on-board [.filename]#COM1# port (aka [.filename]#sio0#-I/O address 0x3F8 and IRQ 4) and you have an extension board with two UARTs, you will commonly need to configure them as [.filename]#COM2# (aka [.filename]#sio1#-I/O address 0x2F8 and IRQ 3), and the third port (aka [.filename]#sio2#) as I/O 0x3E8 and IRQ 5. Obviously this is a waste of IRQ resources, as it should be basically possible to run both extension board ports using a single IRQ with the `COM_MULTIPORT` configuration described in the previous sections." ], "id_hash": -4576032752247758176, "content_hash": -4576032752247758176, "location": "documentation/content/en/articles/serial-uart/_index.adoc:997", "context": "", "note": "type: delimited block = 4", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 343, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 107, "source_unit": "https://translate-dev.freebsd.org/api/units/612143/?format=api", "priority": 100, "id": 612143, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=407eaa74e9b822a0", "url": "https://translate-dev.freebsd.org/api/units/612143/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:24.042697Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "Shown here is port A wired for IRQ 5 and port B wired for IRQ 3. The IRQ columns on your specific board may vary-other boards may supply jumpers for IRQs 3, 4, 5, and 7 instead." ], "previous_source": "", "target": [ "Shown here is port A wired for IRQ 5 and port B wired for IRQ 3. The IRQ columns on your specific board may vary-other boards may supply jumpers for IRQs 3, 4, 5, and 7 instead." ], "id_hash": -4496427009160588122, "content_hash": -4496427009160588122, "location": "documentation/content/en/articles/serial-uart/_index.adoc:1012", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 346, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 37, "source_unit": "https://translate-dev.freebsd.org/api/units/612145/?format=api", "priority": 100, "id": 612145, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=41997b755082d4a6", "url": "https://translate-dev.freebsd.org/api/units/612145/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:24.111740Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/articlesserial-uart_index/en/?format=api", "source": [ "One could conclude that wiring both ports for IRQ 3 using a handcrafted wire-made jumper covering all three connection points in the IRQ 3 column would solve the issue, but no. You cannot duplicate IRQ 3 because the output drivers of each UART are wired in a \"totem pole\" fashion, so if one of the UARTs drives IRQ 3, the output signal will not be what you would expect. Depending on the implementation of the extension board or your motherboard, the IRQ 3 line will continuously stay up, or always stay low." ], "previous_source": "", "target": [ "One could conclude that wiring both ports for IRQ 3 using a handcrafted wire-made jumper covering all three connection points in the IRQ 3 column would solve the issue, but no. You cannot duplicate IRQ 3 because the output drivers of each UART are wired in a \"totem pole\" fashion, so if one of the UARTs drives IRQ 3, the output signal will not be what you would expect. Depending on the implementation of the extension board or your motherboard, the IRQ 3 line will continuously stay up, or always stay low." ], "id_hash": -9104368984160856956, "content_hash": -9104368984160856956, "location": "documentation/content/en/articles/serial-uart/_index.adoc:1016", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 347, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 92, "source_unit": "https://translate-dev.freebsd.org/api/units/612147/?format=api", "priority": 100, "id": 612147, "web_url": "https://translate-dev.freebsd.org/translate/documentation/articlesserial-uart_index/en/?checksum=01a6c8a55b021484", "url": "https://translate-dev.freebsd.org/api/units/612147/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-03-20T20:37:24.148527Z" } ] }