4507_M Datasheet, PDF (80/216 Pages) Renesas Technology Corp – 4-BIT CISC SINGLE-CHIP MICROCOMPUTER 4500 SERIES

4507 Group
HARDWARE
INSTRUCTIONS
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
OP1A (Output port P1 from Accumulator)
Instruction
code
D9
D0
Number of Number of Flag CY
words
cycles
1 0 0 0 1 0 0 0 0 1 ₂ 2 2 1 ₁₆
1
1
–
Skip condition
–
Operation: (P1) ← (A)
Grouping: Input/Output operation
Description: Outputs the contents of register A to port
P1.
OP2A (Output port P2 from Accumulator)
Instruction
code
D9
D0
Number of Number of Flag CY
1000100010
222
words
cycles
2
16
1
1
–
Skip condition
–
Operation: (P21, P20) ← (A1, A0)
Grouping: Input/Output operation
Description: Outputs the contents of the low-order 2 bits
(A1, A0) of register A to port P2.
OP3A (Output port P3 from Accumulator)
Instruction
code
D9
D0
Number of Number of Flag CY
words
cycles
1
0
0
0
1
0
0
0
1
1
2
2
2
3 ₁₆
1
1
–
Skip condition
–
Operation: (P31, P30) ← (A1, A0)
Grouping: Input/Output operation
Description: Outputs the contents of the low-order 2 bits
(A1, A0) of register A to port P3.
OR (logical OR between accumulator and memory)
Instruction
code
D9
D0
Number of Number of Flag CY
0
0
0
0
0
1
1
0
0
1
0
2
1
9 ₁₆
words
1
cycles
1
–
Skip condition
–
Operation: (A) ← (A) OR (M(DP))
Grouping: Arithmetic operation
Description: Takes the OR operation between the con-
tents of register A and the contents of
M(DP), and stores the result in register A.
Rev.2.01 Feb 04, 2005
REJ09B0195-0201
1-68