w77e58 Winbond Electronics Corp America, w77e58 Datasheet - Page 39

• Manufacturer Part Number: w77e58
• Description: 8 Bit Microcontroller
• Manufacturer: Winbond Electronics Corp America

PORT 2
PSEN
AD7-0
ALE
CLK
AD7-0
PSEN
Port 2
CLK
ALE
C1
Instruction Fetch
A7-0
Address A15-8
C2
C1
Instruction Fetch
OP-CODE
C3
A7-0
Address A15-8
C2
C4
OP-CODE
C3
C1
Operand Fetch
C4
A7-0
Address A15-8
C2
Figure 6. Four Cycle Instruction Timing
Figure 7. Five Cycle Instruction Timing
C1
OPERAND
C3
Operand Fetch
A7-0
Address A15-8
C2
C4
OPERAND
C3
C1
- 39 -
Operand Fetch
A7-0
Address A15-8
C4
C2
OPERAND
C3
C1
Operand Fetch
A7-0
C4
Address A15-8
C2
C1
OPERAND
Preliminary W77E58
C3
Operand Fetch
Publication Release Date: March 1999
A7-0
Address A15-8
C2
C4
OPERAND
C3
C1
C4
Operand Fetch
A7-0
C2
Address A15-8
C1
Operand Fetch
OPERAND
A7-0
C3
Address A15-8
C2
C4
OPERAND
C3
Revision A1
C4