UPD17062 Datasheet, PDF (283/296 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLER CONTAINING PLL FREQUENCY SYNTHESIZER AND IMAGE DISPLAY CONTROLLER

µPD17062
23.3 PORT REGISTER
Symbol
P0A3
P0A2
P0A1
P0A0
P0B3
P0B2
P0B1
P0B0
P0C3
P0C2
P0C1
P0C0
P0D3
P0D2
P0D1
P0D0
P1A3
P1A2
P1A1
P1A0
P1B3
P1B2
P1B1
P1B0
P1C3
P1C2
P1C1
Attribute Value
FLG 0.70H.3
FLG 0.70H.2
FLG 0.70H.1
FLG 0.70H.0
FLG 0.71H.3
FLG 0.71H.2
FLG 0.71H.1
FLG 0.71H.0
FLG 0.72H.3
FLG 0.72H.2
FLG 0.72H.1
FLG 0.72H.0
FLG 0.73H.3
FLG 0.73H.2
FLG 0.73H.1
FLG 0.73H.0
FLG 1.70H.3
FLG 1.70H.2
FLG 1.70H.1
FLG 1.70H.0
FLG 1.71H.3
FLG 1.71H.2
FLG 1.71H.1
FLG 1.71H.0
FLG 1.72H.3
FLG 1.72H.2
FLG 1.72H.1
Read/
write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R^Note
R^Note
R^Note
R^Note
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 3 of port 0A
Bit 2 of port 0A
Bit 1 of port 0A
Bit 0 of port 0A
Bit 3 of port 0B
Bit 2 of port 0B
Bit 1 of port 0B
Bit 0 of port 0B
Bit 3 of port 0C
Bit 2 of port 0C
Bit 1 of port 0C
Bit 0 of port 0C
Bit 3 of port 0D
Bit 2 of port 0D
Bit 1 of port 0D
Bit 0 of port 0D
Bit 3 of port 1A
Bit 2 of port 1A
Bit 1 of port 1A
Bit 0 of port 1A
Bit 3 of port 1B
Bit 2 of port 1B
Bit 1 of port 1B
Bit 0 of port 1B
Bit 3 of port 1C
Bit 2 of port 1C
Bit 1 of port 1C
Description
Note These are read-only ports. However, even if an output instruction is written, the assembler (IE-17K)
does not generate an error message. Also, operation is not affected even if it is actually executed
on the device.
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