NEC PD78078 User Manual

CHAPTER 4 PIN FUNCTION (

PD78078Y SUBSERIES)

(2) Non-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 edge,

P02

INTP3

Input

falling edge, both rising and falling edges).

Input

P03

INTP4

P04

INTP5

P05

INTP6

P06

SI0

P25/SB0/SDA0

SI1

Input

Serial interface serial data input

Input

P20

SI2

P70/RxD

SO0

P26/SB1/SDA1

SO1

Output

Serial interface serial data output

Input

P21

SO2

P71/TxD

SB0

P25/SI0/SDA0

SB1

Input/

P26/SO0/SDA1

SDA0

output

P25/SI0/SB0

SDA1

P26/SO0/SB1

SCK0

P27/SCL

SCK1

P22

SCK2

P72/ASCK

SCL

P27/SCK0

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

TI5

External count clock input to 8-bit timer (TM5)

P100/TO5

TI6

External count clock input to 8-bit timer (TM6)

P101/TO6

TO0

16-bit timer (TM0) output (also used for 14-bit PWM output)

P30

TO1

8-bit timer (TM1) output

P31

TO2

Output

8-bit timer (TM2) output

Input

P32

TO5

8-bit timer (TM5) output (also used for 8-bit PWM output)

P100/TI5

TO6

8-bit timer (TM6) output (also used for 8-bit PWM output)

P101/TI6

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

Input/

output

Serial interface serial data input/output

Input

Serial interface serial clock input/output

Input