Preliminary W77E516
Instruction Fetch
C1
CLK
ALE
PSEN
AD7-0
A7-0 OP-CODE
C2
C3
C4
Operand Fetch
C1
C2
C3
C4
C1
Operand Fetch
C2
C3
C4
Operand Fetch
C1
C2
C3
C4
A7-0
OPERAND
A7-0
OPERAND
A7-0
OPERAND
Port 2
Address A15-8
Address A15-8
Address A15-8
Address A15-8
Figure 6. Four Cycle 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
CLK
ALE
PSEN
AD7-0
A7-0
OP-CODE
A7-0
OPERAND
A7-0
OPERAND
A7-0
OPERAND
A7-0
OPERAND
PORT 2
Address A15-8
Address A15-8
Address A15-8
Address A15-8
Address A15-8
Figure 7. Five Cycle Instruction Timing
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Publication Release Date: August 16, 2002
Revision A1