HTG1390 データシートの表示（PDF） - Holtek Semiconductor

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HTG1390

4-bit Microcontroller

Holtek Semiconductor 

JNZ A,address

Machine code

Description

Operation

JNZ Rn,address

Machine code

Description

Operation

JTMR address

Machine code

Description

Operation

JZ A,address

Machine code

Description

Operation

MOV A,Rn

Machine code

Description

Operation

Preliminary

HTG1390

Jump if accumulator is not zero

10111aaa aaaaaaaa

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

address but bit 11 of the program counter is unaffected, if the accumulator

is not zero.

PC (bit 0~10) ← address, if ACC≠0

PC ← PC+2, if ACC=0

Jump if register is not zero

R0 1 0 1 0 0 a a a a a a a a a a a

R1 1 0 1 0 1 a a a a a a a a a a a

R4 1 1 0 1 1 a a a a a a a a a a a

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

address but bit 11 of the program counter is unaffected, if the register is

not zero.

PC (bit 0~10) ← address, if Rn≠0; Rn=R0,R1,R4

PC ← PC+2, if Rn=0

Jump if time-out

11010aaa aaaaaaaa

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

address but bit 11 of the program counter is unaffected, if the TF (Timer

flag) is set to one.

PC (bit 0~10) ← address, if TF=1

PC ← PC+2, if TF=0

Jump if accumulator is zero

10110aaa aaaaaaaa

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

address but bit 11 of the program counter is unaffected, if the accumulator

is zero.

PC (bit 0~10) ← address, if ACC=0

PC ← PC+2, if ACC≠0

Move register to accumulator

0010nnn1

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

ACC ← Rn; Rn=R0~R4, for nnn=0~4

20

17th Nov ’98

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