Panasonic MN101C00 User Manual

Page 24

Table 1-3-1 Pin Function Summary (3/4)

22 Buzzer I/O P06 Buzzer output

Chapter 1 Overview

Pins

Pin No.

Name

Type

Dual Function

Function

Description

TXD

Output

SBO0(P00)

UART transmit

data output pin

RXD

Input

SBI0(P01)

UART receive

data input pin

SBO0

Output

TXD(P00)

Transmit data output pin for serial interfaces 0. The output

configuration, either CMOS push-pull or n-channel open-drain, and

pull-up resistors can be selected by the software. Set these pins to the

output mode by the P0DIR register.

SBO0 is allocated as P00. This may be used as normal I/O pin when

the serial interface is not used.

Clock I/O pin for serial interface 0. The output configuration, either

CMOS push-pull or n-channel open-drain output, can be selected by

the software. The direction of SBT0 is selected by the P0DIR register

in accordance with the communication mode. Pull-up resistors can be

selected by the P0PLU register. SBT0 is allocated as P02. This can be

used as normal I/O pin when the serial interface is not used.

SBT0

I/O

P02

Serial interface

clock I/O pin

Receive data input pin for serial interfaces 0. Pull-up resistor can be

selected by the P0PLU register.

Set these pins to the input mode by the P0DIR register.

SBI0 is allocated as P01. This can be used as normal I/O pin when the

serial interface is not used.

SBI0

Input

RXD(P01)

Serial interface

transmit data

output pin

Serial interface

receive data input

RMOUT

I/O

P10

Remote control transmit

signal output pin

Output pin for remote control transmit signal with a carrier signal.

Can be used as a normal I/O pin when remote control is not used.

In the serial interface in UART mode, these pins are configured as

the receive data input pin and transmit data output pin.

A push-pull or n-channel open-drain configuration can be selected for

TXD by the SC0MD1 register.

Pull-up resistors can be selected by the P0PLU register. The TXD

and RXD pins are also allocated as P00 and P01 respectively. When

not used as serial/UART pins, these can be used as normal I/O pins.

Event counter clock input pins, overflow pulse output pins and PWM

signal output pins for timer 2 to 4.

To use these pins as event clock inputs, configure them as inputs by

the P1DIR register. For overflow pulse and PWM output, configure

these pins as outputs by the P1DIR register. When the pins are used as

inputs, pull-up resistors can be specified by the P1PLU register. When

not used for timer I/O, these can be used as normal I/O pins.

Piezoelectric buzzer driver pin. The driving frequency can be

selected in the range of fs/2 to fs/2 by the DLYCTR register. Select

output mode by the P0DIR register and select buzzer output by the

DLYCTR register. When not used for buzzer output, this pin can be

used as a normal I/O pin.

26 to 28

TM2IO to

I/O P12 to P14 Timer I/O pins

TM4IO