DS80C320-MCG Datasheet, PDF(172/175 Page) Dallas Semiconductor – High-Speed Microcontroller User Guide

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DS80C320-MCG Datasheet, PDF (172/175 Pages) Dallas Semiconductor – High-Speed Microcontroller User Guide

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MNEMONIC

INSTRUCTION CODE

DJNZ Rn, rel

D7 D6 D5 D4 D3 D2 D1

1 1 0 1 1 n2 n1

r7 r6 r5 r4 r3 r2 r1

D0 HEX

n0 D8-Df

r0 Byte 2

DJNZ direct,rel 1 1 0 1 0 1 0 1 D5

a7 a6 a5 a4 a3 a2 a1 a0 Byte 2

r7 r6 r5 r4 r3 r2 r1 r0 Byte 3

NOP

0 0 0 0 0 0 0 0 00

High-Speed Microcontroller Userâs Guide

BYTE

2

3

1

CYCLE

3

4

1

EXPLANATION

(PC) = (PC) + 2

(Rn) = (Rn) - 1

IF (Rn) â 0 THEN

(PC) = (PC) + rel

(PC) = (PC) + 3

(direct) = (direct) - 1

IF (direct) ? 0 THEN

(PC) = (PC) + rel

(PC) = (PC) + 1

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