UPD784224 Datasheet, PDF (12/92 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLERS

µPD784224, 784225, 784224Y, 784225Y
5. PIN FUNCTION
5.1 Port Pins (1/2)
Pin Name
P00
P01
P02
P03
P04
P05
P10 to P17
P20
P21
P22
P23
P24
P25
P26
P27
P30
P31
P32
P33
P34
P35
P36
P37
P40 to P47
P50 to P57
I/O
I/O
Input
I/O
I/O
I/O
I/O
Alternate Function
INTP0
INTP1
INTP2/NM1
INTP3
INTP4
INTP5
ANI0 to ANI7
RxD1/SI1
TxD1/SO1
ASCK1/SCK1
PCL
BUZ
SI0/SDA0^Note
SO0
SCK0/SCL0^Note
TO0
TO1
TO2
TI1
TI2
TI00
TI01
EXA
AD0 to AD7
A8 to A15
Function
Port 0 (P0):
• 6-bit I/O port
• Can be set in input or output mode bit-wise.
• Pins set in input mode can be connected to internal pull-up
resistors by software bit-wise.
Port 1 (P1):
• 8-bit input port
Port 2 (P2):
• 8-bit I/O port
• Can be set in input or output mode bit-wise.
• Pins set in input mode can be connected to internal pull-up
resistors by software bit-wise.
Port 3 (P3):
• 8-bit I/O port
• Can be set in input or output mode bit-wise.
• Pins set in input mode can be connected to internal pull-up
resistors by software bit-wise.
Port 4 (P4):
• 8-bit I/O port
• Can be set in input or output mode bit-wise.
• All pins set in input mode can be connected to internal pull-up
resistors by software.
• Can drive LEDs.
Port 5 (P5):
• 8-bit I/O port
• Can be set in input or output mode bit-wise.
• All pins set in input mode can be connected to internal pull-up
resistors by software.
• Can drive LEDs.
Note This function is available in µPD784255Y Subseries only.
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Data Sheet U12376EJ1V0DS00