| поискавой системы для электроныых деталей |
|
ICS1892 датащи(PDF) 112 Page - Integrated Circuit Systems |
|
|
|||||||||||||||||||||||||||||
ICS1892 датащи(HTML) 112 Page - Integrated Circuit Systems |
|
112 / 148 page ![]() ICS1892, Rev. D, 2/26/01 February 26, 2001 112 Chapter 9 Pin Diagram, Listings, and Descriptions ICS1892 Data Sheet © 2000-2001, Integrated Circuit Systems, Inc. All rights reserved. TXEN 44 Input Transmit Enable. The signal on this pin indicates to the ICS1892 that the MAC/repeater is sending valid data nibbles for transmission on the physical media. • Synchronous with the assertion of TXEN, the ICS1892 begins reading the data nibbles on the transmit data lines and transmitting them over the media. • Following the de-assertion of TXEN, the ICS1892 terminates transmission of nibbles. TXER 42 Input Transmit Error. When the mode is: • 10Base-T, TXER is not required. • 100Base-TX mode: – The assertion of TXER by the MAC/repeater causes the ICS1892 to transmit Invalid Symbols. (The ICS1892 synchronously samples the TXER signal on the rising edges of TXCLK.) – The Invalid Symbol used for this function is the HALT symbol, which is substituted for the transmit nibble received from the MAC/repeater. – When the Invalid Error Code Test bit (bit 16.2) is set to logic one, the 5-bit symbol shown in the Invalid Error Code Translation Table (Table 8-17) is used instead of the normal 4B/5B encoding described in the ISO/IEC specification. Table 9-6. MAC/Repeater Interface Pins: Media Independent Interface (MII) (Continued) Pin Name Pin Number Pin Type Pin Description |
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |