|
4507 Datasheet, PDF (65/115 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER | |||
|
◁ |
4507 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
IAK (Input Accumulator from port K)
Instruction
code
D9
D0
Number of Number of Flag CY
1001101111
26F
words
cycles
2
16
1
1
â
Skip condition
â
Operation:
(A0) â (K)
(A3âA1) â 0
Grouping: Input/Output operation
Description: Transfers the contents of port K to the bit 0
(A0) of register A.
Note:
After this instruction is executed, â0â is
stored to the high-order 3 bits (A3âA1) of
register A.
IAP0 (Input Accumulator from port P0)
Instruction
code
D9
D0
Number of Number of Flag CY
1001100000
260
words
cycles
2
16
1
1
â
Skip condition
â
Operation: (A) â (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
1001100001
261
words
cycles
2
16
1
1
â
Skip condition
â
Operation: (A) â (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
1001100010
262
words
cycles
2
16
1
1
â
Skip condition
â
Operation:
(A1, A0) â (P21, P20)
(A3, A2) â 0
Grouping: Input/Output operation
Description: Transfers the input of port P2 to the low-or-
der 2 bits (A1, A0) of register A.
Note:
After this instruction is executed, â0â is
stored to the high-order 2 bits (A3, A2) of
register A.
Rev.3.01 2005.02.04 page 65 of 111
REJ03B0107-0301
|
▷ |