UPD78043F 查看數據表（PDF） - NEC => Renesas Technology

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UPD78043F

8-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

mPD78042F, 78043F, 78044F, 78045F

3. PINS FUNCTIONS

3.1 PORT PINS (1/2)

Pin name

P00

P01

P02

P03

P04Note 1

P10-P17

P20

P21

P22

P23

P24

P25

P26

P27

P30

P31

P32

P33

P34

P35

P36

P37

I/O

Input

I/O

Input

I/O

I/O

I/O

Function

On reset Shared by:

Port 0

Input only

Input

INTP0/TI0

5-bit I/O port

Can be specified for input or output in 1-bit

Input

INTP1

units. When used as an input port pin, a built-in

INTP2

pull-up resistor can be used by software.

INTP3/CI0

Input only

Input

XT1

Port 1

Input

ANI0-ANI7

8-bit I/O port

Can be specified for input or output in 1-bit units.

When used as an input port pin, a built-in pull-up resistor can be

used by software.Note 2

Port 2

Input

SI1

8-bit I/O port

SO1

Can be specified for input or output in 1-bit units.

SCK1

When used as an input port pin, a built-in pull-up resistor can be

STB

used by software.

BUSY

SI0/SB0

SO0/SB1

SCK0

Port 3

Input

TO0

8-bit I/O port

TO1

Can be specified for input or output in 1-bit units.

TO2

Can directly drive LEDs.

TI1

When used as an input port pin, a built-in pull-up resistor can be

TI2

used by software.

PCL

A pull-down resistor can be connected in 1-bit units by the mask

BUZ

option.

—

Notes 1. When the P04/XT1 pins is used as an input port pin, bit 6 (FRC) of the processor clock control register

(PCC) must be set to 1. At this time, do not use the feedback resistor of the subsystem clock oscillator

circuit.

2. When the P10/ANI0 through P17/ANI7 pins are used as the analog input lines of the A/D converter, be

sure to place the port 1 in the input mode. In this case, the built-in pull-up resistors are automatically

unused.

9

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