4283 Group
NOP (No OPeration)
Instrunction D8
code
D0
0
Number of Number of Flag CY
Skip condition
–
words
cycles
0
0
0
0
0
0
0
0
0
0
0
0
0
8
8
0
0
4
0
D
16
16
16
16
2
2
2
2
1
1
–
Operation:
(PC) ← (PC) + 1
Grouping:
Other operation
Description: No operation
OEA (Output port E from Accumulator)
Instrunction D8
Number of Number of
Flag CY
Skip condition
–
D0
0
words
cycles
code
0
1
0
0
0
0
1
0
1
1
–
Operation:
(E1, E0) ← (A1, A0)
Grouping:
Input/Output operation
Description: Outputs the contents of register A to port E.
OGA (Output port G from Accumulator)
Instrunction D8
Number of Flag CY
cycles
D0
0
Number of
words
Skip condition
–
code
0
1
0
0
0
0
0
0
1
1
–
Operation:
(G) ← (A)
Grouping:
Input/Output operation
Description: Outputs the contents of register A to port G.
POF (Power OFf1)
Instrunction D8
D0
1
Number of Number of Flag CY
Skip condition
–
words
cycles
code
0
0
0
0
0
1
1
0
1
1
–
Operation:
RAM back-up
Grouping:
Other operation
Description: Puts the system in RAM back-up state.
Rev.1.01 Mar 20, 2006 page 34 of 62
REJ03B0109-0101
RENESAS [ RENESAS TECHNOLOGY CORP ]
