4552 Datasheet, PDF (108/145 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4552 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
TW2A (Transfer data to register W2 from Accumulator)
Instruction D9
D0
code
1000001111
20
2
F
16
Number of
words
1
Number of Flag CY
cycles
1
–
Skip condition
–
Operation: (W2) ← (A)
Grouping: Timer operation
Description: Transfers the contents of register A to timer
control register W2.
TW3A (Transfer data to register W3 from Accumulator)
Instruction D9
D0
code
1000010000
21
2
0 ₁₆
Number of
words
1
Number of Flag CY
cycles
1
–
Skip condition
–
Operation: (W3) ← (A)
Grouping: Timer operation
Description: Transfers the contents of register A to timer
control register W3.
TW4A (Transfer data to register W4 from Accumulator)
Instruction
code
D9
D0
1000010001
21
2
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.
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.3.02 Dec 22, 2006 page 108 of 142
REJ03B0023-0302