DSPIC30F5011 MICROCHIP [Microchip Technology], DSPIC30F5011 Datasheet - Page 99

• Manufacturer Part Number: DSPIC30F5011
• Description: High-Performance Digital Signal Controllers
• Manufacturer: MICROCHIP [Microchip Technology]

16.0
This section describes the Universal Asynchronous
Receiver/Transmitter Communications module.
16.1
The key features of the UART module are:
• Full-duplex, 8 or 9-bit data communication
• Even, odd or no parity options (for 8-bit data)
• One or two Stop bits
FIGURE 16-1:
 2004 Microchip Technology Inc.
UxTX
Note:
UNIVERSAL ASYNCHRONOUS
RECEIVER TRANSMITTER
(UART) MODULE
UART Module Overview
x = 1 or 2.
UART TRANSMITTER BLOCK DIAGRAM
Internal Data Bus
UTXBRK
Data
Parity
‘
‘
0
1
’ (Start)
’ (Stop)
Generator
Parity
Preliminary
Write
UTX8 UxTXREG Low Byte
Transmit Shift Register (UxTSR)
• Fully integrated baud rate generator with 16-bit
• Baud rates range from 38 bps to 1.875 Mbps at a
• 4-word deep transmit data buffer
• 4-word deep receive data buffer
• Parity, framing and buffer overrun error detection
• Support for interrupt only on address detect
• Separate transmit and receive interrupts
• Loopback mode for diagnostic support
prescaler
30 MHz instruction rate
(9th bit = 1)
dsPIC30F5011/5013
Load TSR
16 Divider
Write
Control
Signals
Control and Status bits
– Control TSR
– Control Buffer
– Generate Flags
– Generate Interrupt
Transmit Control
16x Baud Clock
from Baud Rate
Generator
DS70116C-page 97
UxTXIF