參數(shù)資料
型號: AM79C970
廠商: Advanced Micro Devices, Inc.
英文描述: PCnetTM-PCI Single-Chip Ethernet Controller for PCI Local Bus
中文描述: PCnetTM - PCI單芯片以太網(wǎng)控制器的PCI總線
文件頁數(shù): 28/168頁
文件大?。?/td> 943K
代理商: AM79C970
P R E L I M I N A R Y
AMD
1-895
Am79C970
Disconnect Without Data Transfer
Figure 8 shows a target disconnect sequence during
which no data is transferred.
STOP
is asserted on clock
4 without
TRDY
being asserted at the same time. The
PCnet-PCI controller terminates the current transfer
with the deassertion of
FRAME
on clock 5 and one clock
cycle later with the deassertion of
IRDY
. It finally re-
leases the bus on clock 6. The PCnet-PCI controller will
re-request the bus after 2 clock cycles to retry the last
transfer. The starting address of the new transfer will be
the same address as of the last untransferred data.
18220C-10
FRAME
CLK
AD
IRDY
TRDY
C/
BE
DEVSEL
REQ
GNT
1
2
3
4
5
6
7
8
DATA
0000
0111
10
9
PAR
PAR
PAR
DEVSEL
is sampled by the PCnet-PCI controller.
STOP
0111
11
ADDR
i
ADDR
i
Figure 8. Disconnect Without Data Transfer
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM79C970A 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:PCnet-PCI II Single-Chip Full-Duplex Ethernet Controller for PCI Local Bus Product
AM79C970AKC 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:PCnet-PCI II Single-Chip Full-Duplex Ethernet Controller for PCI Local Bus Product
AM79C970AKC\\W 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Advanced Micro Devices 功能描述:
AM79C970AKC\W 制造商:Rochester Electronics LLC 功能描述:- Bulk