4501_M Datasheet, PDF (96/212 Pages) Renesas Technology Corp – 4-BIT CISC SINGLE-CHIP MICROCOMPUTER 4500 SERIES

4501 Group
HARDWARE
INSTRUCTIONS
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
TDA (Transfer data to register D from Accumulator)
Instruction
code
D9
D0
Number of Number of Flag CY
0000101001
029
words
cycles
2
16
1
1
–
Skip condition
–
Operation: (DR2–DR0) ← (A2–A0)
Grouping: Register to register transfer
Description: Transfers the contents of 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 (E3–E0) of register E, and
the contents of register A to the low-order 4
bits (E3–E0) of register E.
TI1A (Transfer data to register I1 from Accumulator)
Instruction
code
D9
D0
Number of Number of Flag CY
1000010111
217
words
cycles
2
16
1
1
–
Skip condition
–
Operation: (I1) ← (A)
Grouping: Interrupt operation
Description: Transfers the contents of register A to inter-
rupt control register I1.
TK0A (Transfer data to register K0 from Accumulator)
Instruction D9
D0
code
1000011011
21
2
B
16
Number of
words
1
Number of Flag CY
cycles
1
–
Skip condition
–
Operation: (K0) ← (A)
Grouping: Input/Output operation
Description: Transfers the contents of register A to key-on
wakeup control register K0.
Rev.2.01 Feb 07, 2005
REJ09B0192-0201
1-84