4571 Datasheet, PDF(96/126 Page) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

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4571 Datasheet, PDF (96/126 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

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4571 Group

MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)

TEAB (Transfer data to register E from Accumulator and register B)

Instruc-

Number of

tion

code

0 0 0 0 0 1 1 0 1 0 2 0 1 A 16

words

Number of

cycles

Flag CY

Skip condition

Opera- (E7âE4) â (B)

tion: (E3âE0) â (A)

Grouping: Register to register transfer

Description: Transfers the contents of register B to the high-order 4 bits

(E3âE0) of register E, and the contents of register A to the

low-order 4 bits (E3âE0) of register E.

TFR0A (Transfer data to register FR0 from Accumulator)

Instruc-

Number of

tion

code

1 0 0 0 1 0 1 0 0 0 2 2 2 8 16

words

Number of

cycles

Flag CY

Skip condition

Opera- (FR0) â (A)

tion:

Grouping: Input/Output operation

Description: Transfers the contents of register A to port output structure

control register FR0.

TFR1A (Transfer data to register FR1 from Accumulator)

Instruc-

Number of

tion

code

1 0 0 0 1 0 1 0 0 1 2 2 2 9 16

words

Number of

cycles

Flag CY

Skip condition

Opera- (FR1) â (A)

tion:

Grouping: Input/Output operation

Description: Transfers the contents of register A to port output structure

control register FR1.

TI1A (Transfer data to register I1 from Accumulator)

Instruc-

tion

code

1 0 0 0 0 1 0 1 1 1 2 2 1 7 16

Number of

words

Number of

cycles

Flag CY

Skip condition

Opera- (I1) â (A)

tion:

Grouping: Interrupt operation

Description: Transfers the contents of register A to interrupt control reg-

ister I1.

Rev.1.02 May 25, 2007 Page 96 of 124

REJ03B0179-0102

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