w89c940 Winbond Electronics Corp America, w89c940 Datasheet - Page 38

• Manufacturer Part Number: w89c940
• Description: Elanc-pci Twisted-pair Ether-lan Controller With Pci Interface
• Manufacturer: Winbond Electronics Corp America

Transaction Termination
Disconnect-C/Retry Type
Target-Abort Type
Fast Back-to-Back Transactions
DEVSEL#
STOP#
Note:
STOP#
Note:
DEVSEL#
CLK
FRAME#
AD[31::0]
C/BE[3::0]#
IRDY#
TRDY#
CLK
FRAME#
AD[31::0]
C/BE[3::0]#
IRDY#
TRDY#
T1
T2
T3
T1
T2
T3
1) The other timing requirements for PCI input signal are as the read transaction timing.
2) T1,T2 and T3 are used for the disconnect type C(host try to transfer more than one data
1) The other timing requirements for PCI input signal are as the read transaction timing..
2) T2 and T3 are used for the target abort type(host addressing error).
phase).
0
0
FRAME# deasserted from clock 15
Clock 16 to STOP# asserted time
Clock 18 to STOP# and DEVSEL#
hold time
FRAME# deasserted from clock 15
Clock 4 to DEVSEL# hold time
Clock 6 to STOP# hold time
ADDRESS
BUS CMD
ADDRESS
BUS CMD
1
1
2
2
3
3
BE#'s
BE#'s
4
4
38
T2
5
15
T1
11
11
11
11
T1
0
0
6
16
T3
T2
12
12
12
12
7
17
13
13
13
8
13
18
T3
W89C940
9
19
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