4559 datasheet(91/148 Pages) RENESAS

91 / 148 page

Rev.1.04

Aug 23, 2007

Page 91 of 146

REJ03B0188-0104

4559 Group

MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)

(Enable Interrupt)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

000

01 2 00 5 16

Opera-

tion:

(INTE)

← 1

Grouping:

Interrupt control operation

Description: Sets (1) to interrupt enable flag INTE, and enables the

interrupt.

Note:

Interrupt is enabled by executing the EI instruction after

executing 1 machine cycle.

EPOF

(Enable POF instruction)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

101

11 2 05 B 16

Opera-

tion:

POF instruction or POF2 instruction valid

Grouping:

Other operation

Description: Makes the immediate after POF instruction or POF2

instruction valid by executing the EPOF instruction.

IAP0

(Input Accumulator from port P0)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

110

00 2 26 0 16

Opera-

tion:

(A)

← (P0)

Grouping:

Input/Output operation

Description: Transfers the input of port P0 to register A.

IAP1

(Input Accumulator from port P1)

Instruc-

tion

code

Number of

words

Number of

cycles

Flag CY

Skip condition

110

01 2 26 1 16

Opera-

tion:

(A)

← (P1)

Grouping:

Input/Output operation

Description: Transfers the input of port P1 to register A.

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