MSM80C31 查看數據表（PDF） - Oki Electric Industry
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MSM80C31 Datasheet PDF : 39 Pages
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MSM80C31F/80C51F
External Data Memory Read Cycle
tLHLL
ALE
tWHLH
PSEN
RD
PORT 0
INSTR
IN
PORT 2 PCH
tLLDV
tLLWL
tRLRH
A0~A7
PCL
A8~A15 PCH
tAVLL tLLAX tRLAZ
tRLDV
tRHDZ
tRHDX
A0~A7
Rr or DPL
tAVWL
tAVDV
P2.0~P2.7 DATA or A8~A15 DPH
A0~A7
PCL
A8~A15 PCH
External Data Memory Write Cycle
tLHLL
ALE
tWHLH
PSEN
WR
PORT 0
INSTR
IN
PORT 2
A8~A15
PCH
A0~A7
PCL
A8~A15 PCH
tLLWL
tWLWH
tAVLL
tLLAX tQVWX
A0~A7
Rr or DPL
tAVWL
tQVWH
DATA (ACC)
tWHQX
A0~A7
PCL
P2.0~P2.7 DATA or A8~A15 DPH
A8~A15 PCH
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