4552 Datasheet, PDF (101/145 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4552 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
TAZ (Transfer data to Accumulator from register Z)
Instruction
code
D9
D0
Number of Number of Flag CY
words
cycles
0 0 0 1 0 1 0 0 1 1 ₂ 0 5 3 ₁₆
1
1
–
Skip condition
–
Operation:
(A1, A0) ← (Z1, Z0)
(A3, A2) ← 0
Grouping: Register to register transfer
Description: Transfers the contents of register Z to the
low-order 2 bits (A1, A0) of register A.
Note:
After this instruction is executed, “0” is
stored to the high-order 2 bits (A3, A2) of
register A.
TBA (Transfer data to register B from Accumulator)
Instruction
code
D9
D0
Number of Number of Flag CY
0
0
0
0
0
0
1
1
1
0
0
2
0
E ₁₆
words
1
cycles
1
–
Skip condition
–
Operation: (B) ← (A)
Grouping: Register to register transfer
Description: Transfers the contents of register A to regis-
ter B.
TC1A (Transfer data to register C1 from Accumulator)
Instruction D9
D0
code
1010101000
2A
2
8
16
Number of
words
1
Number of
cycles
1
Flag CY
–
Skip condition
–
Operation: (C1) ← (A)
Grouping: LCD control operation
Description: Transfers the contents of register A to the
LCD control register C1.
TC2A (Transfer data to register C2 from Accumulator)
Instruction D9
D0
code
1010101001
2A
2
9
16
Number of
words
1
Number of
cycles
1
Flag CY
–
Skip condition
–
Operation: (C2) ← (A)
Grouping: LCD control operation
Description: Transfers the contents of register A to the
LCD control register C2.
Rev.3.02 Dec 22, 2006 page 101 of 142
REJ03B0023-0302