W79E804A/803A/802A
Instruction Fetch
C1
CPU CLK
C2
C3
C4
C1
Operand Fetch
C2
C3
C4
C1
Operand Fetch
C2
C3
C4
C1
Operand Fetch
C2
C3
C4
ALE
PSEN
AD<7:0>
A7-0
OP-CODE
A7-0
OPERAND
A7-0
OPERAND
A7-0
OPERAND
Address<15:0>
Address A15-8
Address A15-8
Address A15-8
Address A15-8
Figure 9-4: Four Cycles Instruction Timing
Instruction Fetch
C1
C2
C3
C4
Operand Fetch
C1
C2
C3
C4
Operand Fetch
C1
C2
C3
C4
Operand Fetch
C1
C2
C3
C4
Operand Fetch
C1
C2
C3
C4
CPU CLK
ALE
PSEN
AD<7:0>
A7-0
OP-CODE
A7-0
OPERAND
A7-0
OPERAND
A7-0
OPERAND
A7-0
OPERAND
Address<15:0>
Address A15-8
Address A15-8
Address A15-8
Address A15-8
Address A15-8
Figure 9-5: Five Cycles Instruction Timing
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Publication Release Date: July 16, 2007
Revision A2
WINBOND [ WINBOND ]
