W925EP01 Datasheet, PDF (97/108 Pages) Winbond – 8-BIT CID MICROCONTROLLER

W925EP01/ W925EP01FG
7. TIMING WAVEFORMS
Program Fetch Cycle(Two Machine Cycle)
CLK
PSEN
D7-D0
A16-A0
Instruction Fetch
C1
C2
C3
C4
Operand Fetch
C1
C2
C3
C4
OP-CODE
Address A16-A0
OPERAND
Address A16-A0
Data Read Cycle
CLK
PSEN
RD
D7-D0
A16-A0
Last Cycle
of Previous
Instruction
First
Machine cycle
Second
Machine cycle
MOVX instruction cycle
Next Instruction
Machine Cycle
C1 C2 C3 C4 C1 C2 C3 C4 C1 C2 C3 C4 C1 C2 C3 C4
D7-D0
D7-D0
D7-D0
MOVX Inst.
Address
Next Inst.
Address
MOVX Data
Address
MOVX Inst.
Next Inst. Read ^{MOVX Data in}
A16-A0
A16-A0
A16-A0
D7-D0
A16-A0
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Publication Release Date: Apr. 10, 2006
Revision A2