4552 Datasheet, PDF (102/145 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4552 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
TDA (Transfer data to register D from Accumulator and register B)
Instruction
code
D9
D0
Number of
0
0
0
0
1
0
1
0
0
1₂
0
2
9
16
words
1
Number of
cycles
1
Flag CY
–
Skip condition
–
Operation: (DR2–DR0) ← (A2–A0)
Grouping: Register to register transfer
Description: Transfers the low-order 3 bits (A2–A0) of
register A to register D.
TEAB (Transfer data to register E from Accumulator and register B)
Instruction
code
D9
D0
Number of
0000011010
01A
2
16
words
1
Number of
cycles
1
Flag CY
–
Skip condition
–
Operation:
(E7–E4) ← (B)
(E3–E0) ← (A)
Grouping: Register to register transfer
Description: Transfers the contents of register B to the
high-order 4 bits (E7–E4) of register E, and
the contents of register A to the low-order 4
bits (E3–E0) of register E.
TFR0A (Transfer data to register FR0 from Accumulator)
Instruction D9
D0
code
1000101000
228
2
16
Number of
words
1
Number of
cycles
1
Flag CY
–
Skip condition
–
Operation: (FR0) ← (A)
Grouping: Input/Output operation
Description: Transfers the contents of register A to the
port output structure control register FR0.
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.
Rev.3.02 Dec 22, 2006 page 102 of 142
REJ03B0023-0302