CHAPTER 2 PIN FUNCTIONS
User’s Manual U12697EJ3V0UM
45
(2) Non-port pins (1/2)
Pin Name
I/O
Alternate Function
Function
TI00
Input
P35
External count clock input to 16-bit timer counter
TI01
P36
Capture trigger signal input to capture/compare register 00
TI1
P33
External count clock input to 8-bit timer counter 1
TI2
P34
External count clock input to 8-bit timer counter 2
TO0
Output
P30
16-bit timer output (TM0) (also used as 14-bit PWM output)
TO1
P31
8-bit timer output (TM1) (also used as 8-bit PWM output)
TO2
P32
8-bit timer output (TM2) (also used as 8-bit PWM output)
RxD1
Input
P20/SI1
Serial data input (UART1)
RxD2
P70/SI2
Serial data input (UART2)
TxD1
Output
P21/SO1
Serial data output (UART1)
TxD2
P71/SO2
Serial data output (UART2)
ASCK1
Input
P22/SCK1
Baud rate clock input (UART1)
ASCK2
P72/SCK2
Baud rate clock input (UART2)
SI0
Input
P25/SDA0
Note
Serial data input (3-wire serial I/O0)
SI1
P20/RxD1
Serial data input (3-wire serial I/O1)
SI2
P70/RxD2
Serial data input (3-wire serial I/O2)
SO0
Output
P26
Serial data output (3-wire serial I/O0)
SO1
P21/TxD1
Serial data output (3-wire serial I/O1)
SO2
P71/TxD2
Serial data output (3-wire serial I/O2)
SDA0
Note
I/O
P25/SI0
Serial data input/output (I
2
C bus)
SCK0
P27/SCL0
Note
Serial clock input/output (3-wire serial I/O0)
SCK1
P22/ASCK1
Serial clock input/output (3-wire serial I/O1)
SCK2
P72/ASCK2
Serial clock input/output (3-wire serial I/O2)
SCL0
Note
P27/SCK0
Serial clock input/output (I
2
C bus)
NMI
Input
P02/INTP2
Non-maskable interrupt request input
INTP0
P00
External interrupt request input
INTP1
P01
INTP2
P02/NMI
INTP3
P03
INTP4
P04
INTP5
P05
Note
The SDA0 and SCL0 pins are provided only for the
µ
PD784225Y Subseries.