4554 Datasheet, PDF (110/138 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4554 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
TW4A (Transfer data to register W4 from Accumulator)
Instruction D9
D0
code
1 0 0 0 0 1 0 0 0 1₂ 2 1
1 ₁₆
Number of
words
1
Number of Flag CY
cycles
1
–
Skip condition
–
Operation: (W4) ← (A)
Grouping: Timer operation
Description: Transfers the contents of register A to timer
control register W4.
TW5A (Transfer data to register W5 from Accumulator)
Instruction D9
D0
code
1000010010
21
2
2
16
Number of
words
1
Number of Flag CY
cycles
1
–
Skip condition
–
Operation: (W5) ← (A)
Grouping: Timer operation
Description: Transfers the contents of register A to timer
control register W5.
TW6A (Transfer data to register W6 from Accumulator)
Instruction D9
D0
code
1000010011
21
2
3
16
Number of
words
1
Number of Flag CY
cycles
1
–
Skip condition
–
Operation: (W6) ← (A)
Grouping: Timer operation
Description: Transfers the contents of register A to timer
control register W6.
TYA (Transfer data to register Y from Accumulator)
Instruction
code
D9
D0
Number of Number of Flag CY
0000001100
00C
words
cycles
2
16
1
1
–
Skip condition
–
Operation: (Y) ← (A)
Grouping: Register to register transfer
Description: Transfers the contents of register A to regis-
ter Y.
Rev.3.00 Aug 06, 2004 page 110 of 136
REJ03B0043-0300Z