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9
µ
PD78F4225Y
4. PIN FUNCTION
4.1 Port Pins (1/2)
Pin Name
I/O
Alternate Function
Function
P00
I/O
INTP0
P01
INTP1
P02
INTP2/NMI
P03
INTP3
P04
INTP4
P05
INTP5
P10-P17
Input
ANI0-ANI7
P20
I/O
RxD1/SI1
P21
TxD1/SO1
P22
ASCK1/SCK1
P23
PCL
P24
BUZ
P25
SI0/SDA0
P26
SO0
P27
SCK0/SCL0
P30
I/O
TO0
P31
TO1
P32
TO2
P33
TI1
P34
TI2
P35
TI00
P36
TI01
P37
EXA
P40-P47
I/O
AD0-AD7
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.
P50-P57
I/O
A8-A15
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.
Port 1 (P1):
• 8-bit input port
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 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.
Summary of Contents for uPD78F4225Y
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