P8044AH-R0117 datasheet(59/65 Pages) INNOVASIC

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IA8044/IA8344

Data Sheet

SDLC Communications Controller

March 30, 2010

IA211010112-04

http://www.Innovasic.com

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Page 59 of 65

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Table 55. Data Transfer

Mnemonic

Description

Byte

Cycle

MOV A,Rn

Move register to accumulator

MOV A,direct

Move direct byte to accumulator

MOV A,@Ri

Move indirect RAM to accumulator

MOV A,#data

Move immediate data to accumulator

MOV Rn,A

Move accumulator to register

MOV Rn,direct

Move direct byte to register

MOV Rn,#data

Move immediate data to register

MOV direct,A

Move accumulator to direct byte

MOV direct,Rn

Move register to direct byte

MOV direct,direct

Move direct byte to direct byte

MOV direct,@Ri

Move indirect RAM to direct byte

MOV direct,#data

Move immediate data to direct byte

MOV @Ri,A

Move accumulator to indirect RAM

MOV @Ri,direct

Move direct byte to indirect RAM

MOV @ Ri, #data

Move immediate data to indirect RAM

MOV DPTR, #data16

Load data pointer with a 16-bit constant

MOVC A,@A + DPTR

Move code byte relative to DPTR to accumulator

MOVC A,@A + PC

Move code byte relative to PC to accumulator

MOVX A,@Ri

Move external RAM (8-bit address) to A

MOVX A,@DPTR

Move external RAM (16-bit address) to A

MOVX @Ri,A

Move A to external RAM (8-bit address)

MOVX @DPTR,A

Move A to external RAM (16-bit address)

PUSH direct

Push direct byte onto stack

POP direct

Pop direct byte from stack

XCH A,Rn

Exchange register with accumulator

XCH A,direct

Exchange direct byte with accumulator

XCH A,@Ri

Exchange indirect RAM with accumulator

XCHD X,@ Ri

Exchange low-order nibble indirect RAM with A

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