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UPD17708 Datasheet(PDF) 338 Page - NEC

No. de pieza UPD17708
Descripción Electrónicos  4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DEDICATED HARDWARE FOR DIGITAL TUNING SYSTEM
PDF  356 Pages
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Fabricante Electrónico  NEC [NEC]
Página de inicio  http://www.nec.com/
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UPD17708 Datasheet(HTML) 338 Page - NEC

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µPD17704, 17705, 17707, 17708, 17709
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23.3 Port Registers
Symbol Name Attribute
Value
R/W
Description
P0A3
FLG
0.70H.3
R/W
Bit 3 of port 0A
P0A2
FLG
0.70H.2
R/W
Bit 2 of port 0A
P0A1
FLG
0.70H.1
R/W
Bit 1 of port 0A
P0A0
FLG
0.70H.0
R/W
Bit 0 of port 0A
P0B3
FLG
0.71H.3
R/W
Bit 3 of port 0B
P0B2
FLG
0.71H.2
R/W
Bit 2 of port 0B
P0B1
FLG
0.71H.1
R/W
Bit 1 of port 0B
P0B0
FLG
0.71H.0
R/W
Bit 0 of port 0B
P0C3
FLG
0.72H.3
R/W
Bit 3 of port 0C
P0C2
FLG
0.72H.2
R/W
Bit 2 of port 0C
P0C1
FLG
0.72H.1
R/W
Bit 1 of port 0C
P0C0
FLG
0.72H.0
R/W
Bit 0 of port 0C
P0D3
FLG
0.73H.3
RNote
Bit 3 of port 0D
P0D2
FLG
0.73H.2
RNote
Bit 2 of port 0D
P0D1
FLG
0.73H.1
RNote
Bit 1 of port 0D
P0D0
FLG
0.73H.0
RNote
Bit 0 of port 0D
P1A3
FLG
1.70H.3
RNote
Bit 3 of port 1A
P1A2
FLG
1.70H.2
RNote
Bit 2 of port 1A
P1A1
FLG
1.70H.1
RNote
Bit 1 of port 1A
P1A0
FLG
1.70H.0
RNote
Bit 0 of port 1A
P1B3
FLG
1.71H.3
R/W
Bit 3 of port 1B
P1B2
FLG
1.71H.2
R/W
Bit 2 of port 1B
P1B1
FLG
1.71H.1
R/W
Bit 1 of port 1B
P1B0
FLG
1.71H.0
R/W
Bit 0 of port 1B
P1C3
FLG
1.72H.3
RNote
Bit 3 of port 1C
P1C2
FLG
1.72H.2
RNote
Bit 2 of port 1C
P1C1
FLG
1.72H.1
RNote
Bit 1 of port 1C
P1C0
FLG
1.72H.0
R/W
Bit 0 of port 1C
Note
These are input ports. However, even if an instruction that outputs data to these ports is described, the
assembler and in-circuit emulator do not output an error message. Moreover, nothing is affected in terms
of operation even if such an instruction is actually executed on the device.
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