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HTG12N0 데이터시트(PDF) 26 Page - Holtek Semiconductor Inc

부품명 HTG12N0
상세설명  4-Bit Microcontroller
PDF  30 Pages
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제조업체  HOLTEK [Holtek Semiconductor Inc]
홈페이지  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HTG12N0 데이터시트(HTML) 26 Page - Holtek Semiconductor Inc

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OR A,[R1R0]
Logical OR accumulator with data memory
Machine Code
0 0 0 1 1 1 0 0
Description
Data in the accumulator is logically OR with the data memory addressed
by the register pair “R1,R0”.
Operation
ACC
← ACC “OR” M(R1,R0)
OR [R1R0],A
Logical OR data memory with accumulator
Machine Code
0 0 0 1 1 1 1 1
Description
Data in the data memory addressed by the register pair “R1,R0” is logical
OR with the accumulator.
Operation
M(R1,R0)
← M(R1,R0) “OR” ACC
OUT Pi,A
Output accumulator data to port-i
Machine Code
0 0 1 1 0 0 0 0 PA
0 0 1 1 0 1 0 0 PC
Description
The data in the accumulator is transferred to the port-i and latched.
Operation
Pi
← ACC; Pi=PA or PC
READ MR0A
Read ROM code of current page to M(R1,R0) and ACC
Machine Code
0 1 0 0 1 1 1 0
Description
The 8-bits of ROM code (current page) addressed by ACC and R4 are
moved to the data memory M(R1,R0) and accumulator. The high nibble of
the ROM code is loaded to M(R1,R0) and the low nibble of the ROM code is
loaded to accumulator. The address of the ROM code are specified below :
Current page
→ ROM code address bit 12~8
ACC
→ ROM code address bit 7~4
R4
→ ROM code address bit 3~0
Operation
M(R1R0)
← ROM code (high nibble)
ACC
← ROM code (low nibble)
READ R4A
Read ROM code of current page to R4 and accumulator
Machine Code
0 1 0 0 1 1 0 0
Description
The 8-bits of ROM code (current page) addressed by ACC and M(R1,R0)
are moved to the working register R4 and accumulator. The high nibble of
the ROM code is loaded to R4 and the low nibble of the ROM code is loaded
to the accumulator. The address of the ROM code are specified below:
Current page
→ ROM code address bit 12~8
ACC
→ ROM code address bit 7~4
M(R1,R0)
→ ROM code address bit 3~0
Operation
R4
← ROM code (high nibble)
ACC
← ROM code (low nibble)
HTG12N0
26
18th Mar ’99



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