4518 Datasheet, PDF (96/160 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4518 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
EPOF (Enable POF instruction)
Instruction
code
D9
D0
Number of Number of Flag CY
words
cycles
0
0
0
1
0
1
1
0
1
1
0
2
5
B ₁₆
1
1
–
Skip condition
–
Operation: POF instruction valid
Grouping: Other operation
Description: Makes the immediate after POF instruction
valid by executing the EPOF instruction.
IAP0 (Input Accumulator from port P0)
Instruction
code
D9
D0
Number of Number of Flag CY
words
cycles
1 0 0 1 1 0 0 0 0 0 ₂ 2 6 0 ₁₆
1
1
–
Skip condition
–
Operation: (A) ← (P0)
Grouping: Input/Output operation
Description: Transfers the input of port P0 to register A.
IAP1 (Input Accumulator from port P1)
Instruction
code
D9
D0
Number of Number of Flag CY
words
cycles
1
0
0
1
1
0
0
0
0
1
2
2
6
1 ₁₆
1
1
–
Skip condition
–
Operation: (A) ← (P1)
Grouping: Input/Output operation
Description: Transfers the input of port P1 to register A.
IAP2 (Input Accumulator from port P2)
Instruction
code
D9
D0
Number of Number of Flag CY
1
0
0
1
1
0
0
0
1
0
2
2
6
2 ₁₆
words
1
cycles
1
–
Skip condition
–
Operation:
(A2–A0) ← (P22–P20)
(A3) ← 0
Grouping: Input/Output operation
Description: Transfers the input of port P2 to register A.
Rev.3.01 2005.06.15 page 96 of 157
REJ03B0008-0301