ST7LITE3XF2 datasheet(91/173 Pages) STMICROELECTRONICS

Teilenummer	ST7LITE3XF2

Bauteilbeschribung	8-bit MCU with single voltage Flash, data EEPROM, ADC, timers, SPI, LINSCI?

PDF	173 Pages

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Hersteller	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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ST7LITE3xF2

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LINSCI

™ SERIAL COMMUNICATION INTERFACE (cont’d)

11.5.4 General Description

The interface is externally connected to another

device by two pins:

– TDO: Transmit Data Output. When the transmit-

ter is disabled, the output pin returns to its I/O

port configuration. When the transmitter is ena-

bled and nothing is to be transmitted, the TDO

pin is at high level.

– RDI: Receive Data Input is the serial data input.

Oversampling techniques are used for data re-

covery by discriminating between valid incoming

data and noise.

Through these pins, serial data is transmitted and

received as characters comprising:

– An Idle Line prior to transmission or reception

– A start bit

– A data word (8 or 9 bits) least significant bit first

– A Stop bit indicating that the character is com-

plete

This interface uses three types of baud rate gener-

ator:

– A conventional type for commonly-used baud

rates

– An extended type with a prescaler offering a very

wide range of baud rates even with non-standard

oscillator frequencies

– A LIN baud rate generator with automatic resyn-

chronization

ST7LITE3XF2 Datenblatt(PDF) 91 Page - STMicroelectronics