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參數資料
型號: W89C940
廠商: WINBOND ELECTRONICS CORP
英文描述: ELANC-PCI (TWISTED-PAIR ETHER-LAN CONTROLLER WITH PCI INTERFACE)
中文描述: ELANC -的PCI(雙絞線醚局域網控制器帶有PCI接口)
文件頁數: 38/61頁
文件大小: 353K
代理商: W89C940
W89C940
38
Transaction Termination
Disconnect-C/Retry Type
CLK
FRAME#
AD[31::0]
IRDY#
TRDY#
ADDRESS
BUS CMD
BE#'s
1
2
3
4
15
16
17
C/BE[3::0]#
0
T1
18
19
T3
STOP#
DEVSEL#
T2
SYMBOL
T1
T2
T3
DESCRIPTION
MIN
0
11
11
TYP
MAX
UNIT
nsec
nsec
nsec
FRAME# deasserted from clock 15
Clock 16 to STOP# asserted time
Clock 18 to STOP# and DEVSEL#
hold time
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
phase).
12
12
13
13
Note:
Target-Abort Type
CLK
FRAME#
AD[31::0]
IRDY#
TRDY#
ADDRESS
BUS CMD
BE#'s
1
2
3
4
5
6
7
C/BE[3::0]#
0
T1
T2
STOP#
T3
DEVSEL#
8
9
SYMBOL
T1
T2
T3
Note:
DESCRIPTION
MIN
0
11
11
TYP
MAX
UNIT
nsec
nsec
nsec
FRAME# deasserted from clock 15
Clock 4 to DEVSEL# hold time
Clock 6 to STOP# hold time
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).
12
12
13
13
Fast Back-to-Back Transactions
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