DSPIC33FJ12GP201TESLASHML datasheet(155/242 Pages) MICROCHIP

155 / 242 page

Preliminary

DS70264B-page 153

dsPIC33FJ12GP201/202

16.0 UNIVERSAL ASYNCHRONOUS

RECEIVER TRANSMITTER

(UART)

The Universal Asynchronous Receiver Transmitter

(UART) module is one of the serial I/O modules

available in the dsPIC33FJ12GP201/202 device family.

The UART is a full-duplex asynchronous system that

can communicate with peripheral devices, such as

personal computers, LIN, RS-232 and RS-485

interfaces. The module also supports a hardware flow

control option with the UxCTS and UxRTS pins and

also includes an IrDA® encoder and decoder.

The primary features of the UART module are:

• Full-Duplex, 8- or 9-bit Data Transmission through

the UxTX and UxRX pins

• Even, odd or no parity options (for 8-bit data)

• One or two stop bits

• Hardware Flow Control Option with UxCTS and

UxRTS pins

• Fully Integrated Baud Rate Generator with 16-bit

prescaler

• Baud rates ranging from 1 Mbps to 15 Mbps at

16 MIPS

• 4-deep First-In First-Out (FIFO) Transmit Data

Buffer

• 4-Deep FIFO Receive Data Buffer

• Parity, framing and buffer overrun error detection

• Support for 9-bit mode with Address Detect

(9th bit = 1)

• Transmit and Receive interrupts

• A separate interrupt for all UART error conditions

• Loopback mode for diagnostic support

• Support for Sync and Break characters

• Support for automatic baud rate detection

• IrDA encoder and decoder logic

• 16x baud clock output for IrDA support

A simplified block diagram of the UART module is

shown in Figure 16-1. The UART module consists of

these key hardware elements:

• Baud Rate Generator

• Asynchronous Transmitter

• Asynchronous Receiver

FIGURE 16-1:

UART SIMPLIFIED BLOCK DIAGRAM

Note:

This data sheet summarizes the features

of the dsPIC33FJ12GP201/202 devices. It

is not intended to be a comprehensive

reference source. To complement the

information in this data sheet, refer to the

“dsPIC33F Family Reference Manual”.

Please see the Microchip web site

(www.microchip.com)

for

the

latest

dsPIC33F Family Reference Manual

sections.

UxRX

Hardware Flow Control

UART Receiver

UART Transmitter

UxTX

BCLK

Baud Rate Generator

UxRTS

IrDA®

UxCTS

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