4554 Datasheet, PDF (104/138 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4554 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
TFR1A (Transfer data to register FR1 from Accumulator)
Instruction D9
D0
code
1000101001
229
2
16
Number of
words
1
Number of
cycles
1
Flag CY
–
Skip condition
–
Operation: (FR1) ← (A)
Grouping: Input/Output operation
Description: Transfers the contents of register A to the
port output structure control register FR1.
TFR2A (Transfer data to register FR2 from Accumulator)
Instruction D9
D0
code
1000101010
22A
2
16
Number of
words
1
Number of
cycles
1
Flag CY
–
Skip condition
–
Operation: (FR2) ← (A)
Grouping: Input/Output operation
Description: Transfers the contents of register A to the
port output structure control register FR2.
TI1A (Transfer data to register I1 from Accumulator)
Instruction
code
D9
D0
Number of Number of Flag CY
1000010111
217
words
cycles
2
16
1
1
–
Skip condition
–
Operation: (I1) ← (A)
Grouping: Interrupt operation
Description: Transfers the contents of register A to inter-
rupt control register I1.
TI2A (Transfer data to register I2 from Accumulator)
Instruction
code
D9
D0
Number of Number of Flag CY
1000011000
218
words
cycles
2
16
1
1
–
Skip condition
–
Operation: (I2) ← (A)
Grouping: Interrupt operation
Description: Transfers the contents of register A to inter-
rupt control register I2.
Rev.3.00 Aug 06, 2004 page 104 of 136
REJ03B0043-0300Z