pic32mx320f032h Microchip Technology Inc., pic32mx320f032h Datasheet - Page 87

• Manufacturer Part Number: pic32mx320f032h
• Description: 64/100-pin General Purpose And Usb 32-bit Flash Microcontrollers
• Manufacturer: Microchip Technology Inc.

19.0
The UART module is one of the serial I/O modules
available in PIC32MX3XX/4XX family devices. The
UART is a full-duplex, asynchronous communication
channel that communicates with peripheral devices
and personal computers through protocols such as RS-
232, RS-485, LIN 1.2 and IrDA
ports the hardware flow control option, with UxCTS and
UxRTS pins, and also includes an IrDA encoder and
decoder.
FIGURE 19-1:
© 2009 Microchip Technology Inc.
Note:
UNIVERSAL ASYNCHRONOUS
RECEIVER TRANSMITTER
(UART)
reference source. Refer to the “PIC32MX
description of this peripheral.
This data sheet summarizes the features of
the PIC32MX3XX/4XX family of devices. It
is not intended to be a comprehensive
Family Reference Manual” Section 21.
“ Universal Asynchronous Receiver Trans-
mitter (UART) ”
The manual is available from the Microchip
web site (www.Microchip.com/PIC32).
UART SIMPLIFIED BLOCK DIAGRAM
Hardware Flow Control
Baud Rate Generator
(DS61107) for a detailed
®
UARTx Transmitter
. The module also sup-
UARTx Receiver
IrDA
®
Preliminary
The primary features of the UART module are:
• Full-duplex, 8-bit or 9-bit data transmission
• Even, odd or no parity options (for 8-bit data)
• One or two Stop bits
• Hardware auto-baud feature
• Hardware flow control option
• Fully integrated Baud Rate Generator (BRG) with
• Baud rates ranging from 76 bps to 20 Mbps at 80
• 4-level-deep First-In-First-Out (FIFO) Transmit
• 4-level-deep FIFO Receive Data Buffer
• Parity, framing and buffer overrun error detection
• Support for interrupt only on address detect (9th
• Separate transmit and receive interrupts
• Loopback mode for diagnostic support
• LIN 1.2 protocol support
• IrDA encoder and decoder with 16x baud clock
Figure 19-1 shows a simplified block diagram of the
UART.
16-bit prescaler
MHz
Data Buffer
bit = 1 )
output for external IrDA encoder/decoder support
PIC32MX3XX/4XX
BCLKx
UxRTS
UxCTS
UxRX
UxTX
DS61143F-page 85