UPD78064B Ver la hoja de datos (PDF) - NEC => Renesas Technology

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UPD78064B

8-BIT SINGLE-CHIP MICROCONTROLLER

NEC => Renesas Technology 

µPD78064B(A)

3. PIN FUNCTIONS

3.1 Port Pins (1/2)

Pin Name

I/O

P00

P01

P02

P03

P04

P05

P07Note 1

P10 to P17

Input

Input/

output

Input

Input/

output

P25

Input/

output

P26

P27

P30

Input/

P31

output

P32

P33

P34

P35

P36

P37

P70

Input/

output

P71

P72

Port 0

7-bit I/O port.

Function

Input only.

Input/output can be specified bit-wise.

When used as an input port, an on-chip

pull-up resistor can be used by

software.

Input only.

Port 1

8-bit input/output port.

Input/output can be specified bit-wise.

When used as an input port, an on-chip pull-up resistor can be

used by software.Note 2

Port 2

3-bit input/output port.

Input/output can be specified bit-wise.

When used as an input port, an on-chip pull-up resistor can be

used by software.

Port 3

8-bit input/output port.

Input/output can be specified bit-wise.

When used as an input port, an on-chip pull-up resistor can be

used by software.

Port 7

3-bit input/output port.

Input/output can be specified bit-wise.

When used as an input port, an on-chip pull-up resistor can be

used by software.

After Reset

Input

Input

Input

Input

Alternate

function

INTP0/TI00

INTP1/TI01

INTP2

INTP3

INTP4

INTP5

XT1

ANI0 to ANI7

Input

Input

Input

SI0/SB0

SO0/SB1

SCK0

TO0

TO1

TO2

TI1

TI2

PCL

BUZ

—

SI2/RXD

SO2/TXD

SCK2/ASCK

Notes 1. When using the P07/XT1 pins as an input port, set (1) bit 6 (FRC) of the processor clock control register

(PCC). (the on-chip feedback resistor of the subsystem clock oscillator should not be used.)

2. When using the P10/ANI0 to P17/ANI7 pins as the A/D converter analog input, port 1 is set to the input

mode. However, the on-chip pull-up resistor is automatically disabled.

11

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