DSPIC33FJ06GS201TESLASHMM datasheet(233/346 Pages) MICROCHIP

233 / 346 page

Preliminary

DS70318D-page 231

dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/X04

18.0

UNIVERSAL ASYNCHRONOUS

RECEIVER TRANSMITTER

(UART)

The Universal Asynchronous Receiver Transmitter

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

available

the

dsPIC33FJ06GS101/X02

and

dsPIC33FJ16GSX02/X04 device families. 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-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 1 Mbps to 15 bps at

16x mode at 40 MIPS

• Baud Rates Ranging from 4 Mbps to 61 bps at

4x mode 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 18-1. The UART module consists of

these key hardware elements:

• Baud Rate Generator

• Asynchronous Transmitter

• Asynchronous Receiver

FIGURE 18-1:

UART SIMPLIFIED BLOCK DIAGRAM

Note:

This data sheet summarizes the features

the

dsPIC33FJ06GS101/X02

and

dsPIC33FJ16GSX02/X04

family

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”

, Section 17. “UART”

(DS70188), which is available on the

Microchip web site (www.microchip.com).

UxRX

Hardware Flow Control

UART Receiver

UART Transmitter

UxTX

Baud Rate Generator

UxRTS

IrDA®

UxCTS

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