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HTG1390 Datasheet(PDF) 21 Page - Holtek Semiconductor Inc

Part # HTG1390
Description  4-bit Microcontroller
PDF  27 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HTG1390 Datasheet(HTML) 21 Page - Holtek Semiconductor Inc

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MOV A,TMRH
Move timer high nibble to accumulator
Machine code
0 0 1 1 1 0 1 1
Description
The high nibble data of the timer counter is loaded to the accumulator.
Operation
ACC
← TIMER (high nibble)
MOV A,TMRL
Move timer low nibble to accumulator
Machine code
0 0 1 1 1 0 1 0
Description
The low nibble data of the timer counter is loaded to the accumulator.
Operation
ACC
← TIMER (low nibble)
MOV A,XH
Move immediate data to accumulator
Machine code
0 1 1 1 d d d d
Description
The 4-bit data specified by the code is loaded to the accumulator.
Operation
ACC
← XH
MOV A,[R1R0]
Move data memory to accumulator
Machine code
0 0 0 0 0 1 0 0
Description
Data in the data memory specified by the register pair “R1,R0” is moved to
the accumulator.
Operation
ACC
← M(R1,R0)
MOV A,[R3R2]
Move data memory to accumulator
Machine code
0 0 0 0 0 1 1 0
Description
Data in the data memory specified by the register pair “R3,R2” is moved to
the accumulator.
Operation
ACC
← M(R3,R2)
MOV R1R0,XXH
Move immediate data to R1 and R0
Machine code
0 1 0 1 d d d d
0 0 0 0 d d d d
Description
The 8-bit data specified by the code is loaded to the working registers R1
and R0, the high nibble of the data is loaded to R1, and the low nibble to
R0.
Operation
R1
← XH (high nibble)
R0
← XH (low nibble)
MOV R3R2,XXH
Move immediate data to R3 and R2
Machine code
0 1 1 0 d d d d
0 0 0 0 d d d d
Description
The 8-bit data specified by the code is loaded to the working registers R3
and R2, the high nibble of the data is loaded to R3, and the low nibble to
R2.
Operation
R3
← XH (high nibble)
R2
← XH (low nibble)
HTG1390
Preliminary
21
17th Nov ’98



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