4507_M Datasheet, PDF (79/216 Pages) Renesas Technology Corp – 4-BIT CISC SINGLE-CHIP MICROCOMPUTER 4500 SERIES

4507 Group
HARDWARE
INSTRUCTIONS
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
LZ z (Load register Z with z)
Instruction
code
D9
D0
Number of Number of Flag CY
0
0
0
1
0
0
1
0
z1 z0 ₂ 0
4
8
+z 16
words
1
cycles
1
–
Skip condition
–
Operation: (Z) ← z z = 0 to 3
Grouping: RAM addresses
Description: Loads the value z in the immediate field to
register Z.
NOP (No OPeration)
Instruction
code
D9
D0
Number of Number of Flag CY
0000000000
000
words
cycles
2
16
1
1
–
Skip condition
–
Operation: (PC) ← (PC) + 1
Grouping: Other operation
Description: No operation; Adds 1 to program counter
value, and others remain unchanged.
OKA (Output port K from Accumulator)
Instruction
code
D9
D0
Number of Number of Flag CY
1000011111
21F
words
cycles
2
16
1
1
–
Skip condition
–
Operation: (K) ← (A0)
Grouping: Input/Output operation
Description: Outputs the contents of bit 0 (A0) of register
A to port K.
OP0A (Output port P0 from Accumulator)
Instruction
code
D9
D0
Number of Number of Flag CY
1000100000
220
words
cycles
2
16
1
1
–
Skip condition
–
Operation: (P0) ← (A)
Grouping: Input/Output operation
Description: Outputs the contents of register A to port
P0.
Rev.2.01 Feb 04, 2005
REJ09B0195-0201
1-67