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UPD17232 Datasheet(PDF) 13 Page - NEC

Part # UPD17232
Description  4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
PDF  92 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD17232 Datasheet(HTML) 13 Page - NEC

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Data Sheet U14360EJ1V0DS00
µPD17230, 17231, 17232, 17233, 17234, 17235, 17236
13
The first address of the subroutine that can be called by the system call instruction (“SYSCAL entry”) is the first
16 steps of each block (block 0 to 7) in page 0 of segment 1 (system segment).
Figure 2-2. Outline of System Call Instruction
Page 1
Page 2
Page 3
Page 0
(16 bits
× 2K steps)
(16 bits
× 8K steps)
Segment 0
Page 1
Page 2
Page 3
(16 bits
× 8K steps)
Segment 1
(system segment)
Block 0
Block 1
Block 2
Block 7
Block 0 of segment 1
Entry address of
SYSCAL instruction
0
0
0
0
0
0
0
0
0
0
1
1
0
1
1
0
7
F
7
F
8
0
8
0
F
F
F
F
0
0
0
0
F
F
F
F
0
0
0
0
H
H
H
H
H
H
H
H
0
0
0
0
0
0
0
0
2
2
3
3
2
3
3
2
7
F
7
F
8
0
8
0
F
F
F
F
0
0
0
0
F
F
F
F
0
0
0
0
H
H
H
H
H
H
H
H
020 F F H
02100 H
021 F F H
02200 H
022 F F H
02700 H
02000 H
0200 F H
Area in which
entry address of
system segment
can be specified
.
.
.
.



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