4556 datasheet(96/145 Pages) RENESAS

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Rev.3.02

Dec 22, 2006

page 96 of 142

REJ03B0025-0302

4556 Group

TAD (Transfer data to Accumulator from register D)

0001010001

051

–

Grouping:

Description: Transfers the contents of register D to the

low-order 3 bits (A2–A0) of register A.

Note:

When this instruction is executed, “0” is

stored to the bit 3 (A3) of register A.

Operation:

(A2–A0)

← (DR2–DR0)

(A3)

← 0

MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)

TAI1 (Transfer data to Accumulator from register I1)

1001010011

253

–

Grouping:

Interrupt operation

Description: Transfers the contents of interrupt control

Operation:

(A)

← (I1)

TAK0 (Transfer data to Accumulator from register K0)

1001010110

256

–

Grouping:

Input/Output operation

Description: Transfers the contents of key-on wakeup

control register K0 to register A.

Operation:

(A)

← (K0)

TABPS (Transfer data to Accumulator and register B from PreScaler)

1001110101

275

–

Grouping:

Timer operation

Description: Transfers the high-order 4 bits (TPS7–

TPS4) of prescaler to register B, and

transfers the low-order 4 bits (TPS3–TPS0)

of prescaler to register A.

Operation:

(B)

← (TPS7–TPS4)

(A)

← (TPS3–TPS0)

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