 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
AM79C971VCW датащи(PDF) 133 Page - Advanced Micro Devices |
|
|
|||||||||||||||||||||||||||||
AM79C971VCW датащи(HTML) 133 Page - Advanced Micro Devices |
|
|
133 / 265 page  Am79C971 133 Read/Write accessible only when either the STOP or the SPND bit is set. LOOP is cleared by H_RESET or S_RESET and is unaffected by STOP. 1 DTX Disable Transmit results in Am79C971 controller not access- ing the Transmit Descriptor Ring and, therefore, no transmissions are attempted. DTX = 0, will set TXON bit (CSR0 bit 4) if STRT (CSR0 bit 1) is asserted. Read/Write accessible only when either the STOP or the SPND bit is set. 0 DRX Disable Receiver results in the Am79C971 controller not access- ing the Receive Descriptor Ring and, therefore, all receive frame data are ignored. DRX = 0, will set RXON bit (CSR0 bit 5) if STRT (CSR0 bit 1) is asserted. Read/Write accessible only when either the STOP or the SPND bit is set. CSR16: Initialization Block Address Lower Bit Name Description 31-16 RES Reserved locations. Written as zeros and read as undefined. 15-0 IADRL This register is an alias of CSR1. Read/Write accessible only when either the STOP or the SPND bit is set. CSR17: Initialization Block Address Upper Bit Name Description 31-16 RES Reserved locations. Written as zeros and read as undefined. 15-0 IADRH This register is an alias of CSR2. Read/Write accessible only when either the STOP or the SPND bit is set. CSR18: Current Receive Buffer Address Lower Bit Name Description 31-16 RES Reserved locations. Written as zeros and read as undefined. 15-0 CRBAL Contains the lower 16 bits of the current receive buffer address at which the Am79C971 controller will store incoming frame data. Read/Write accessible only when either the STOP or the SPND bit is set. These bits are unaffected by H_RESET, S_RESET, or STOP. CSR19: Current Receive Buffer Address Upper Bit Name Description 31-16 RES Reserved locations. Written as zeros and read as undefined. 15-0 CRBAU Contains the upper 16 bits of the current receive buffer address at which the Am79C971 controller will store incoming frame data. Read/Write accessible only when either the STOP or the SPND bit is set. These bits are unaffected by H_RESET, S_RESET, or STOP. CSR20: Current Transmit Buffer Address Lower Bit Name Description 31-16 RES Reserved locations. Written as zeros and read as undefined. 15-0 CXBAL Contains the lower 16 bits of the current transmit buffer address from which the Am79C971 con- troller is transmitting. Read/Write accessible only when either the STOP or the SPND bit is set. These bits are unaffected by H_RESET, S_RESET, or STOP. CSR21: Current Transmit Buffer Address Upper Bit Name Description 31-16 RES Reserved locations. Written as zeros and read as undefined. |
|
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 |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
