HTG12N0 datasheet(25/30 Pages) HOLTEK

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MOV Rn,A

Move accumulator to register

Machine Code

0 0 1 0 n n n 0

Description

Data in the accumulator is moved to the working register “Rn”.

Operation

← ACC; Rn=R0,R1,R2,R3,R4, for nnn=0,1,2,3,4

MOV TMRH,A

Move accumulator to timer

Machine Code

0 0 1 1 1 1 0 1

Description

The contents of accumulator is loaded to the high nibble of the timer

counter.

Operation

TIMER (high nibble)

← ACC

MOV TMRL,A

Move accumulator to timer

Machine Code

0 0 1 1 1 1 0 0

Description

The contents of accumulator is loaded to the low nibble of the timer

counter.

Operation

TIMER (low nibble)

← ACC

MOV [R1R0],A

Move accumulator to data memory

Machine Code

0 0 0 0 0 1 0 1

Description

Data in the accumulator is moved to the data memory specified by the reg-

ister pair “R1,R0”.

Operation

M(R1,R0)

← ACC

MOV [R3R2],A

Move accumulator to data memory

Machine Code

0 0 0 0 0 1 1 1

Description

Data in the accumulator is moved to the data memory specified by the reg-

ister pair “R3,R2”.

Operation

M(R3,R2)

← ACC

NOP

No operation

Machine Code

0 0 1 1 1 1 1 0

Description

Do nothing, but one instruction cycle is delayed.

OR A,XH

Logical OR immediate data to accumulator

Machine Code

0 1 0 0 0 1 0 0

0 0 0 0 d d d d

Description

Data in the accumulator is logical OR with the immediate data specified

by code.

Operation

ACC

← ACC “OR” XH

HTG12N0

18th Mar ’99

HTG12N0 Scheda tecnica(PDF) 25 Page - Holtek Semiconductor Inc

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