DSPIC33FJ12MC201TESS datasheet(187/304 Pages) MICROCHIP

187 / 304 page

DS70265E-page 187

dsPIC33FJ12MC201/202

19.0

UNIVERSAL ASYNCHRONOUS

RECEIVER TRANSMITTER

(UART)

The Universal Asynchronous Receiver Transmitter

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

available in the dsPIC33FJ12MC201/202 device

family. The UART is a full-duplex asynchronous system

that can communicate with peripheral devices, such as

personal computers, LIN, and 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-bit 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 10 Mbps to 38 bps at 40

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 19-1. The UART module consists of

these key hardware elements:

• Baud Rate Generator

• Asynchronous Transmitter

• Asynchronous Receiver

FIGURE 19-1:

UART SIMPLIFIED BLOCK DIAGRAM

Note 1:

This data sheet summarizes the features

of the dsPIC33FJ12MC201/202 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 17. “UART”

(DS70188) of the “dsPIC33F/PIC24H

Family Reference Manual”

, which is

available on the Microchip website

(www.microchip.com).

Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization”

this data sheet for device-specific register

and bit information.

UxRX

Hardware Flow Control

UART Receiver

UART Transmitter

UxTX

Baud Rate Generator

UxRTS/BCLK

IrDA®

UxCTS

DSPIC33FJ12MC201TESS Datasheet(PDF) 187 Page - Microchip Technology

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