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HTG13J0 Datasheet(PDF) 21 Page - Holtek Semiconductor Inc

Part # HTG13J0
Description  4-Bit Microcontroller
PDF  30 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HTG13J0 Datasheet(HTML) 21 Page - Holtek Semiconductor Inc

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HT13J0
21
May19,1999
INC[R3R2]
Incrementdatamemory
MachineCode
00001110
Description
Data memory specified by the register pair "R3,R2" is incremented by 1.
Carryflagisnotaffected.
Operation
M(R3,R2)
¬ M(R3,R2)+1
JAnaddress
JumpifaccumulatorBitnisset
MachineCode
100nnaaaaaaaaaaa
Description
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,ifaccumulatorbitnissetto1.
Operation
PC(bit0~10)
¬ address,ifACCbitn=1(n=0,1,2,3,)
PC
¬ PC+2,ifACCbitn=0
JCaddress
Jumpifcarryisset
MachineCode
11000aaaaaaaaaaa
Description
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,ifC(Carryflag)issetto1.
Operation
PC(bit0~10)
¬ address,ifC=1
PC
¬ PC+2,ifC=0
JMPaddress
DirectJump
MachineCode
1110aaaaaaaaaaaa
Description
Bits 0~11 of the program counter are replaced with the directly-specified
address.
Operation
PC
¬ address
JNCaddress
Jumpifcarryisnotset
MachineCode
11001aaaaaaaaaaa
Description
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,ifC(Carryflag)issetto0.
Operation
PC(bit0~10)
¬ address,ifC=0
PC
¬ PC+2,ifC=1



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