DSPIC33FJ64MC508 Microchip Technology Inc., DSPIC33FJ64MC508 Datasheet - Page 213
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DSPIC33FJ64MC508
Manufacturer Part Number
DSPIC33FJ64MC508
Description
High-performance, 16-bit Digital Signal Controllers
Manufacturer
Microchip Technology Inc.
Datasheet
1.DSPIC33FJ64MC508.pdf
(342 pages)
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19.0
The Universal Asynchronous Receiver Transmitter
(UART) module is one of the serial I/O modules avail-
able in the dsPIC33FJXXXMCX06/X08/X10 Motor
Control Family 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 sup-
ports a hardware flow control option with the UxCTS
and UxRTS pins and also includes an IrDA
and decoder.
The primary features of the UART module are:
• Full-Duplex, 8 or 9-bit Data Transmission through
• Even, Odd or No Parity Options (for 8-bit data)
• One or Two Stop bits
FIGURE 19-1:
© 2007 Microchip Technology Inc.
Note:
the UxTX and UxRX pins
Note 1: Both UART1 and UART2 can trigger a DMA data transfer. If U1TX, U1RX, U2TX or U2RX is selected as
2: If DMA transfers are required, the UART TX/RX FIFO buffer must be set to a size of 1 byte/word (i.e.,
UNIVERSAL ASYNCHRONOUS
RECEIVER TRANSMITTER
(UART)
This data sheet summarizes the features
of this group of dsPIC33FJXXXMCX06/
X08/X10 Motor Control 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”.
Refer
(www.microchip.com)
dsPIC33F
chapters.
a DMA IRQ source, a DMA transfer occurs when the U1TXIF, U1RXIF, U2TXIF or U2RXIF bit gets set as
a result of a UART1 or UART2 transmission or reception.
UTXISEL<1:0> = 00 and URXISEL<1:0> = 00).
dsPIC33FJXXXMCX06/X08/X10 MOTOR CONTROL FAMILY
to
UART SIMPLIFIED BLOCK DIAGRAM
the
family
Microchip
Hardware Flow Control
Baud Rate Generator
UART Transmitter
reference
UART Receiver
for
IrDA
the
web
®
®
manual
encoder
latest
site
• Hardware Flow Control Option with UxCTS and
• Fully Integrated Baud Rate Generator with 16-bit
• Baud Rates Ranging from 1 Mbps to 15 bps at
• 4-deep First-In-First-Out (FIFO) Transmit Data
• 4-Deep FIFO Receive Data Buffer
• Parity, Framing and Buffer Overrun Error Detection
• Support for 9-bit mode with Address Detect
• Transmit and Receive Interrupts
• A Separate Interrupt for all UART Error Conditions
• Loopback mode for Diagnostic Support
• Support for Sync and Break Characters
• Supports Automatic Baud Rate Detection
• IrDA Encoder and Decoder Logic
• 16x Baud Clock Output for IrDA Support
A simplified block diagram of the UART is shown in
Figure 19-1. The UART module consists of the key
important hardware elements:
• Baud Rate Generator
• Asynchronous Transmitter
• Asynchronous Receiver
UxRTS pins
Prescaler
16 MIPS
Buffer
(9th bit = 1)
BCLK
UxRTS
UxCTS
UxRX
UxTX
DS70287A-page 211
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