M0519 datasheet(46/69 Pages) ETC2

46 / 69 page

M0519

Nov. 02, 2016

Page 46 of 69

Rev 1.02

Universal Asynchronous Receiver Transmitter (UART)

6.12

6.12.1 Overview

The NuMicro

® M0519 series provides two channels of Universal Asynchronous

Receiver/Transmitters (UART). UART Controller performs Normal Speed UART and supports

flow control function. The UART Controller performs a serial-to-parallel conversion on data

received from the peripheral and a parallel-to-serial conversion on data transmitted from the CPU.

Each UART Controller channel supports seven types of interrupts. The UART controller also

supports IrDA SIR, RS-485 and LIN.

6.12.2 Features



Full duplex, asynchronous communications



Separates receive / transmit 16 bytes entry FIFO for data payloads



Supports hardware auto-flow control/flow control function (nCTS, nRTS) and programmable

nRTS flow control trigger level



Programmable receiver buffer trigger level



Supports programmable baud-rate generator for each channel individually



Supports nCTS wake-up function



Supports 8-bit receiver buffer time out detection function



Programmable transmitting data delay time between the last stop and the next start bit by

setting DLY (UA_TOR [15:8]) register



Supports break error, frame error, parity error and receive / transmit buffer overflow detect

function



Fully programmable serial-interface characteristics



Programmable data bit length, 5-, 6-, 7-, 8-bit character



Programmable parity bit, even, odd, no parity or stick parity bit generation and

detection



Programmable stop bit length, 1, 1.5, or 2 stop bit generation



IrDA SIR function mode



Supports 3-/16-bit duration for normal mode



LIN function mode



Supports LIN master/slave mode



Supports programmable break generation function for transmitter



Supports break detect function for receiver



RS-485 function mode



Supports RS-485 9-bit mode



Supports hardware or software direct enable control provided by nRTS pin

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