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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: 42/61頁
文件大小: 353K
代理商: W89C940
W89C940
42
T4
T5
T6
T7
T8
clock n+4 to MSRDB valid
clock n+7 to MSRDB deasserted time
MSD setup tim to clock n+6
MSD hold time from clock n+6
MSD hold time from clock n+8
22
15
7
0
27
20
30
25
nsec
nsec
nsec
nsec
nsec
Remote Read Double Word Access Cycle
CLK
1
2
3
FRAME#
AD[31::0]
ADDRESS
BUS CMD
BE#'s
TRDY#
IRDY#
C_BE#[3:0]
DATA
DEVSEL#
MSRDB
RCSB
MSA0-13
MSWRB
(Read)
MSD0-7
0
T1
T4
T3
n+4
n+5
n+6
n+7
T2
T8
n+8
n+9
T5
T6
T7
T7
T6
T6
T7
T7
T6
T2
T8
n+10 n+11 n+12 n+13 n+14
SYMBOL
T1
DESCRIPTION
MIN
20
TYPICAL
25
MAX
30
UNIT
nsec
clock n+4 to RCSB and MSA valid (note
2)
clock n+6 to MSA valid
clock n+7 to RCSB deasserted time
clock n+4 to MSRDB valid
clock n+7 to MSRDB deasserted time
MSD setup tim to clock n+6
MSD hold time from clock n+6
MSD hold time from clock n+8
T2
T3
T4
T5
T6
T7
T8
25
10
22
15
7
0
28
15
27
20
30
20
30
25
nsec
nsec
nsec
nsec
nsec
nsec
nsec
Remote Write Byte Access Cycle
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