HTG13J0 데이터 시트보기 (PDF) - Holtek Semiconductor

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HTG13J0

4-Bit Microcontroller

Holtek Semiconductor 

INC [R3R2]

Machine Code

Description

Operation

JAn address

Machine Code

Description

Operation

JC address

Machine Code

Description

Operation

JMP address

Machine Code

Description

Operation

JNC address

Machine Code

Description

Operation

HT13J0

Increment data memory

00001110

Data memory specified by the register pair "R3,R2" is incremented by 1.

Carry flag is not affected.

M(R3,R2) ¬ M(R3,R2)+1

Jump if accumulator Bit n is set

100nnaaa aaaaaaaa

Bits 0~10 of the program counter are replaced with the directly-specified

address, bit 11 of the program counter and PA3 of the memory bank re-

main, if accumulator bit n is set to 1.

PC (bit 0~10) ¬ address, if ACC bit n=1 (n=0,1,2,3,)

PC ¬ PC+2, if ACC bit n=0

Jump if carry is set

11000aaa aaaaaaaa

Bits 0~10 of the program counter are replaced with the directly-specified

address, bit 11 of the program counter and PA3 of the memory bank re-

main, if C (Carry flag) is set to 1.

PC (bit 0~10) ¬ address, if C=1

PC ¬ PC+2, if C=0

Direct Jump

1110aaaa aaaaaaaa

Bits 0~11 of the program counter are replaced with the directly-specified

address.

PC ¬ address

Jump if carry is not set

11001aaa aaaaaaaa

Bits 0~10 of the program counter are replaced with the directly-specified

address, bit 11 of the program counter and PA3 of the memory bank re-

main, if C (Carry flag) is set to 0.

PC (bit 0~10) ¬ address, if C=0

PC ¬ PC+2, if C=1

21

May 19, 1999

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