Panasonic MN101C00 user manual Pin Function Summary 3/4, Txd

Chapter 1 Overview

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

		Pin No.	Name	Type	Dual Function	Function	Description
20			TXD	Output	SBO0(P00)	UART transmit
							In the serial interface in UART mode, these pins are configured as
						data output pin	the receive data input pin and transmit data output pin.
21			RXD	Input	SBI0(P01)	UART receive	A push-pull or n-channel open-drain configuration can be selected for
						data input pin	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.
	20		SBO0	Output	TXD(P00)	Serial interface	Transmit data output pin for serial interfaces 0. The output
						transmit data	configuration, either CMOS push-pull or n-channel open-drain, and
						output pin	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.
Receive data input pin for serial interfaces 0. Pull-up resistor can be
			21	SBI0	Input	RXD(P01)	Serial interface
						receive data input	selected by the P0PLU register.
						pin	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.

22	SBT0	I/O	P02	Serial interface
				clock I/O pin

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.

22			Buzzer	I/O	P06	Buzzer output		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.
24	RMOUT	I/O	P10	Remote control transmit
								Output pin for remote control transmit signal with a carrier signal.
						signal output pin		Can be used as a normal I/O pin when remote control is not used.
	26 to 28		TM2IO to	I/O	P12 to P14	Timer I/O pins	Event counter clock input pins, overflow pulse output pins and PWM
			TM4IO				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.

10 Pins