4571 datasheet(96/126 Pages) RENESAS

96 / 126 page

Rev.1.02

May 25, 2007

Page 96 of 124

REJ03B0179-0102

4571 Group

MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)

TEAB

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

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

001

10 2 01 A 16

Opera-

tion:

(E7

−E4) ← (B)

(E3

−E0) ← (A)

Grouping:

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.

TFR0A

(Transfer data to register FR0 from Accumulator)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

010

00 2 22 8 16

Opera-

tion:

(FR0)

← (A)

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-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

010

01 2 22 9 16

Opera-

tion:

(FR1)

← (A)

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

Number of

words

Number of

cycles

Flag CY

Skip condition

001

11 2 21 7 16

Opera-

tion:

(I1)

← (A)

Grouping:

Interrupt operation

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

ister I1.

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