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CHAPTER 3 PIN FUNCTION (
µ
PD78054 Subseries)
(2) Pins other than port pins (1/2)
Pin Name
Input/Output
Function After Reset
Alternate Function
INTP0 P00/TI00
INTP1 P01/TI01
INTP2 External interrupt request inputs with specifiable valid edges (rising P02
INTP3 Input edge, falling edge, both rising and falling edges). Input P03
INTP4 P04
INTP5 P05
INTP6 P06
SI0 P25/SB0
SI1 Input Serial interface serial data input Input P20
SI2 P70/RxD
SO0 P26/SB1
SO1 Output Serial interface serial data output Input P21
SO2 P71/TxD
SB0 Input/ P25/SI0
SB1 output P26/SO0
SCK0 P27
SCK1 Serial interface serial clock input/output Input P22
SCK2 P72/ASCK
STB Output Serial interface automatic transmit/receive strobe output Input P23
BUSY Input Serial interface automatic transmit/receive busy input Input P24
RxD Input Asynchronous serial interface serial data input Input P70/SI2
TxD Output Asynchronous serial interface serial data output Input P71/SO2
ASCK Input Asynchronous serial interface serial clock input Input P72/SCK2
TI00 External count clock input to 16-bit timer (TM0) P00/INTP0
TI01 Capture trigger signal input to capture register (CR00) P01/INTP1
TI1 External count clock input to 8-bit timer (TM1) P33
TI2 External count clock input to 8-bit timer (TM2) P34
TO0 16-bit timer (TM0) output (also used for 14-bit PWM output) P30
TO1 Output P31
TO2 P32
PCL Output Clock output (for main system clock and subsystem clock trimming) Input P35
BUZ Output Buzzer output Input P36
RTP0 to RTP7
Output Real-time output port outputting data in synchronization with trigger Input P120 to P127
Input/
output
Serial interface serial data input/output Input
Input Input
Input
8-bit timer (TM1) output
8-bit timer (TM2) output