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參數資料
型號: W89C926
廠商: WINBOND ELECTRONICS CORP
英文描述: PCMCIA ETHERNET NETWORK TWISTED PAIR INTERFACE CONTROLLER
中文描述: PCMCIA以太網雙絞線網絡接口控制器
文件頁數: 34/48頁
文件大小: 395K
代理商: W89C926
W89C926 PENTIC+
- 34 -
Flash Memory
Memory Support Bus Access (Flash Access)
T9
MSAn
T1
T2
T3
T4
Valid
T7
T8
T6
T5
MSDn
(Read)
MSDn
(Write)
Valid
FCS
MSRD
MSWR
T10
T11
T12
SYMBOL
T1
DESCRIPTION
MIN.
0
MAX.
-
UNIT
nS
MSA0-16 valid to FCS asserted.
T2
FCS asserted to MSRD, MSWR asserted.
20
-
nS
T3
MSA0-16 held valid after MSRD, MSWRdeasserted.
5
-
nS
T4a
FCS held valid after MSRD deasserted.
0
-
nS
T4b
FCS held valid after MSWR deasserted.
5
-
nS
T5
MSRD asserted to read data valid.
-
60
nS
T6
Read data hold from MSRDdeasserted.
0
-
nS
T7
Write data setup to MSWR deasserted.
55
-
nS
T8
Write data hold from MSWR deasserted.
Access cycle time
Write pulse width
15
-
nS
T9
T10
T11
150
55
75
-
nS
nS
nS
FCS asserted to MSWR deasserted
Write recovery time before read
Read recovery time before write
Consecutive same commands interval
-
T12a
T12b
T12c
6
0
-
-
-
μ
S
μ
S
nS
20
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