HTG13J0 데이터 시트보기 (PDF) - Holtek Semiconductor

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HTG13J0

4-Bit Microcontroller

Holtek Semiconductor 

DEC [R3R2]

Machine Code

Description

Operation

DI

Machine Code

Description

EI

Machine Code

Description

HALT

Machine Code

Description

Operation

IN A,Pi

Machine Code

Description

Operation

INC A

Machine Code

Description

Operation

INC Rn

Machine Code

Description

Operation

INC [R1R0]

Machine Code

Description

Operation

HT13J0

Decrement data memory

00001111

Data in the data memory specified by the register pair "R3,R2" is decre-

mented by 1. Carry flag is not affected.

M(R3,R2) ¬ M(R3,R2)-1

Disable interrupt

00101101

Internal time-out interrupt and external interrupt are disabled.

Enable interrupt

00101100

Internal time-out interrupt and external interrupt are enabled.

Halt system clock

00110111 00111110

Turn off system clock, and enter power down mode.

PC ¬ (PC)+1

Input port to accumulator

0 0 1 1 0 0 1 1 PS

0 0 1 1 0 1 0 0 PP

The data on port "Pi" is transferred to the accumulator.

ACC ¬ Pi; Pi=PS or PP

Increment accumulator

00110001

Data in the accumulator is incremented by 1. Carry flag is not affected.

ACC ¬ ACC+1

Increment register

0001nnn0

Data in the working register "Rn" is incremented by 1. Carry flag is not

affected.

Rn ¬ Rn+1; Rn=R0, R1, R2, R3, R4 for n=0, 1, 2, 3, 4

Increment data memory

00001100

Data in the data memory specified by the register pair "R1,R0" is incre-

mented by 1. Carry flag is not affected.

M(R1,R0) ¬ M(R1,R0)+1

20

May 19, 1999

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