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UPD64 Fiches technique(PDF) 30 Page - NEC

No de pièce UPD64
Description  4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
PDF  68 Pages
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Fabricant  NEC [NEC]
Site Internet  http://www.nec.com/
Logo NEC - NEC

UPD64 Fiches technique(HTML) 30 Page - NEC

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30
µPD63, 63A, 64
9. INSTRUCTION SET
9.1 Machine Language Output by Assembler
The bit length of the machine language of this product is 10 bits per word. However, the machine language that
is output by the assembler is extended to 16 bits per word. As shown in the example below, the expansion is made
by inserting 3-bit extended bits (111) in two locations.
Figure 9-1. Example of Assembler Output (10 bits extended to 16 bits)
<1> In the case of “ANL A, @R0H”
1
1
1010
1
0000
1010
1
0000
111
111
Extended bits
Extended bits
= FAF0
<2> In the case of “OUT P0, #data8”
0
0
0110
1
1000
0110
1
1000
111
111
Extended bits
Extended bits
= E6F8



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