Overview Of The Uart - Fujitsu F2MC-16LX Hardware Manual

Mb90470 series 16-bit microcontroller

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Table of Contents

CHAPTER 21 UART

21.1 Overview of the UART

The UART is a serial I/O port for asynchronous (start-stop) communications or CLK

synchronous communication.

I UART features

The UART has the following features:

Full-duplex double buffer

Both asynchronous (start-stop) and CLK synchronous communication (no start bit and stop

bit) are available

Support of multiprocessor mode

Dedicated built-in baud rate generator

In asynchronous transfer: 76923/38461/19230/9615/500K/250Kbps

In CLK synchronous transfer: 16Mbps/8Mbps/4Mbps/2Mbps/1Mbps/500Kbps

Free baud rate setting via external clock

Internal clock supplied by PPG1 can be used

Data length: 7 bits (asynchronous normal mode only)/8 bits

Master/slave communication function (in multiprocessor mode): 1 (master) to n (slaves)

communication enabled

Error detection function (parity, framing, overrun)

Transfer signal: NRZ code

DMAC support (reception/transmission)