UPD78P048A datasheet(14/73 Pages) RENESAS

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µPD78P048A

Data Sheet U10611EJ2V1DS

2. PIN FUNCTION

2.1 Pins in Normal Operating Mode

(1) Port pins (1/2)

Pin Name

Input/Output

Function

On Reset

Dual-Function Pin

P00

Input

Port 0

Input only Input

Input

INTP0/TI0

P01

Input/output

5-bit input/

INTP1

P02

output port

Input

INTP2

P03

INTP3/CI0

P04Note 1

Input

Input only

Input

XT1

P10 to P17

Input/output

Port 1

8-bit input/output port

Input/output is specifiable bit-wise.

Input

ANI0 to ANI7

When used as the input port, it is possible to

use an on-chip pull-up resistor in software.Note 2

P20

Input/output

Input

SI1

P21

SO1

P22

SCK1

P23

STB

P24

BUSY

P25

SI0/SB0

P26

SO0/SB1

P27

SCK0

P30

Input/output

Input

TO0

P31

TO1

P32

TO2

P33

TI1

P34

TI2

P35

PCL

P36

BUZ

P37

–

Notes 1. When the P04/XT1 pins are used as input ports, processor clock control register (PCC) bit 6 (FRC) should

be set to 1 (the subsystem clock oscillator incorporated feedback resistor should not be used).

2. When the P10/ANI0 to P17/ANI7 pins are used as A/D converter analog input, port 1 should be set to the

input mode. The on-chip pull-up resistor is not automatically used.

Input/Output is specifiable bit-wise.

When used as the input port, it is

possible to use an on-chip pull-up

resistor in software.

Port 2

8-bit input/output port

Input/output is specifiable bit-wise.

When used as the input port, it is possible to

use an on-chip pull-up resistor in software.

Port 3

8-bit input/output port

Input/output is specifiable bit-wise.

Direct LED drive capability.

When used as the input port, it is possible to

use an on-chip pull-up resistor in software.

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