 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
AM79C970 数据表(PDF) 31 Page - Advanced Micro Devices |
|
|
|||||||||||||||||||||||||||||
AM79C970 数据表(HTML) 31 Page - Advanced Micro Devices |
|
|
31 / 168 page  AMD P R E L I M I N A R Y 1-898 Am79C970 Preemption When FRAME is Asserted The central arbiter can take GNT to the PCnet-PCI con- troller away if the current bus operation takes too long. This may happen e.g. when the PCnet-PCI controller tries to fill the whole transmit FIFO and the target inserts extra wait states for every data phase. When GNT is taken away, the PCnet-PCI controller will finish the current transfer and then immediately release the bus. The Latency Timer in PCI configuration space of the PCnet-PCI controller is always set to ZERO. The PCnet- PCI controller will keep REQ asserted to regain bus ownership as soon as possible. 18220C-13 FRAME CLK AD IRDY TRDY C/ BE DEVSEL REQ GNT 12345678 ADDR DATA DATA DATA 0000 0111 9 PAR PAR PAR PAR PAR DEVSEL is sampled by the PCnet-PCI controller. Figure 11. Preemption When FRAME is Asserted |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 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 |
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
