D78054 查看數據表（PDF） - NEC => Renesas Technology

零件编号

产品描述 (功能)

生产厂家

D78054

8-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD78001B(A), 78002B(A)

3. PIN FUNCTIONS

3.1 PORT PINS (1/2)

Pin Name

I/O

P00

P01

P02

P03

P04*

P10 to P17

Input

Input/

output

Input

Input/

output

Port 0

5-bit I/O port

Function

Input only

Input/output can be specified bit-wise.

When used as an input port, 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, pull-up resistor can be used by software.

After

Reset

Input

Input

Input

Dual-

Function Pin

INTP0

INTP1

INTP2

INTP3

XT1

–

P20

P21

P22

P23

P24

P25

P26

P27

P30

P31

P32

P33

P34

P35

P36

P37

P40 to P47

Input/

output

Input/

output

Input/

output

Port 2

8-bit input/output port.

Input/output can be specified bit-wise.

When used as an input port, pull-up resistor can be used by software.

Port 3

8-bit input/output port.

Input/output can be specified in bit-wise.

When used as an input port, pull-up resistor can be used by software.

Port 4

8-bit input/output port.

Input/output can be specified in 8-bit unit.

When used as an input port, pull-up resistor can be used by software.

Test input flag (KRIF) is set to 1 by falling edge detection.

Input

Input

Input

–

–

–

–

–

SI0/SB0

SO0/SB1

SCK0

–

TO1

TO2

TI1

TI2

PCL

BUZ

–

AD0 to AD7

* When using the P04/XT1 pins as an input port, set 1 to bit 6 (FRC) of the processor control register. (Do not use

the on-chip feedback register of the subsystem clock oscillator.)

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