4509 Datasheet, PDF (101/142 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4509 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
TADAB (Transfer data to register AD from Accumulator from register B)
Instruction
code
D9
D0
Number of
1000111001
239
2
16
words
1
Number of
cycles
1
Flag CY
–
Skip condition
–
Operation:
Q13 = 1: (AD7–AD4) ← (B)
(AD3–AD0) ← (A)
Q13 = 0: TADAB = NOP
Grouping: A/D conversion operation
Description: In the comparator mode (Q13 = 1), transfers
the contents of register B to the high-order 4
bits (AD7–AD4) of comparator register, and
the contents of register A to the low-order 4
bits (AD3–AD0) of comparator register.
In the A/D conversion mode (Q13 = 0), this in-
struction is equivalent to the NOP instruction.
(Q13 = bit 3 of A/D control register Q1)
TAI1 (Transfer data to Accumulator from register I1)
Instruction
code
D9
D0
Number of Number of Flag CY
1001010011
253
words
cycles
2
16
1
1
–
Skip condition
–
Operation: (A) ← (I1)
Grouping: Interrupt operation
Description: Transfers the contents of interrupt control
register I1 to register A.
TAJ1 (Transfer data to Accumulator from register J1)
Instruction D9
D0
code
1001000010
24
2
2
16
Number of
words
1
Number of Flag CY
cycles
1
–
Skip condition
–
Operation: (A) ← (J1)
Grouping: Serial interface operation
Description: Transfers the contents of serial interface
control register J1 to register A.
TAK0 (Transfer data to Accumulator from register K0)
Instruction D9
D0
code
1001010110
25
2
6
16
Number of
words
1
Number of Flag CY
cycles
1
–
Skip condition
–
Operation: (A) ← (K0)
Grouping: Input/Output operation
Description: Transfers the contents of key-on wakeup
control register K0 to register A.
Rev.1.02 2006.12.22 page 101 of 140
REJ03B0147-0102