4552 Datasheet, PDF (94/145 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4552 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
T2AB (Transfer data to timer 2 and register R2L from Accumulator and register B)
Instruction
code
D9
D0
Number of Number of
1000110001
231
2
16
words
1
cycles
1
Flag CY
–
Skip condition
–
Operation:
(R2L7–R2L4) ← (B)
(T27–T24) ← (B)
(R2L3–R2L0) ← (A)
(T23–T20) ← (A)
Grouping: Timer operation
Description: Transfers the contents of register B to the
high-order 4 bits of timer 2 and timer 2 re-
load register R2L. Transfers the contents of
register A to the low-order 4 bits of timer 2
and timer 2 reload register R2L.
T2HAB (Transfer data to register R2H from Accumulator and register B)
Instruction
code
D9
D0
Number of
1
0
1
0
0
1
0
1
0
0
2
2
9
4 ₁₆
words
1
Number of
cycles
1
Flag CY
–
Skip condition
–
Operation:
(R2H7–R2H4) ← (B)
(R2H3–R2H0) ← (A)
Grouping: Timer operation
Description: Transfers the contents of register B to the
high-order 4 bits of timer 2 and timer 2 re-
load register R2H. Transfers the contents of
register A to the low-order 4 bits of timer 2
and timer 2 reload register R2H.
T2R2L (Transfer data to timer 2 from register R2L)
Instruction
code
D9
D0
Number of Number of Flag CY
words
cycles
1 0 1 0 0 1 0 1 0 1 ₂ 2 9 5 ₁₆
1
1
–
Skip condition
–
Operation: (T27–T20) ← (R2L7–R2L0)
Grouping: Timer operation
Description: Transfers the contents of reload register
R2L to timer 2.
TAB (Transfer data to Accumulator from register B)
Instruction
code
D9
D0
Number of Number of Flag CY
words
cycles
0 0 0 0 0 1 1 1 1 0 ₂ 0 1 E ₁₆
1
1
–
Skip condition
–
Operation: (A) ← (B)
Grouping: Register to register transfer
Description: Transfers the contents of register B to reg-
ister A.
Rev.3.02 Dec 22, 2006 page 94 of 142
REJ03B0023-0302