4571 Datasheet, PDF(93/126 Page) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

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4571 Datasheet, PDF (93/126 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

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4571 Group

MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)

TASP (Transfer data to Accumulator from Stack Pointer)

Instruc-

tion

code

0 0 0 1 0 1 0 0 0 0 2 0 5 0 16

Number of

words

Number of

cycles

Flag CY

Skip condition

Opera- (A2âA0) â (SP2âSP0)

tion: (A3) â 0

Grouping: Register to register transfer

Description: Transfers the contents of stack pointer (SP) to the low-

order 3 bits (A2âA0) of register A.

â0â is stored to the bit 3 (A3) of register A.

TAV1 (Transfer data to Accumulator from register V1)

Instruc-

tion

code

0 0 0 1 0 1 0 1 0 0 2 0 5 4 16

Number of

words

Number of

cycles

Flag CY

Skip condition

Opera- (A) â (V1)

tion:

Grouping: Interrupt operation

Description: Transfers the contents of interrupt control register V1 to

TAV2 (Transfer data to Accumulator from register V2)

Instruc-

tion

code

0 0 0 1 0 1 0 1 0 1 2 0 5 5 16

Number of

words

Number of

cycles

Flag CY

Skip condition

Opera- (A) â (V2)

tion:

Grouping: Interrupt operation

Description: Transfers the contents of interrupt control register V2 to

TAW1 (Transfer data to Accumulator from register W1)

Instruc-

tion

code

1 0 0 1 0 0 1 0 1 1 2 2 4 B 16

Number of

words

Number of

cycles

Flag CY

Skip condition

Opera- (A) â (W1)

tion:

Grouping: Timer operation

Description: Transfers the contents of timer control register W1 to regis-

ter A.

Rev.1.02 May 25, 2007 Page 93 of 124

REJ03B0179-0102

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