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DSPIC30F датащи(PDF) 99 Page - Microchip Technology

номер детали DSPIC30F
подробное описание детали  High-Performance Digital Signal Controllers
PDF  220 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

DSPIC30F датащи(HTML) 99 Page - Microchip Technology

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 2004 Microchip Technology Inc.
Preliminary
DS70116C-page 97
dsPIC30F5011/5013
16.0
UNIVERSAL ASYNCHRONOUS
RECEIVER TRANSMITTER
(UART) MODULE
This section describes the Universal Asynchronous
Receiver/Transmitter Communications module.
16.1
UART Module Overview
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
• Fully integrated baud rate generator with 16-bit
prescaler
• Baud rates range from 38 bps to 1.875 Mbps at a
30 MHz instruction rate
• 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
(9th bit = 1)
• Separate transmit and receive interrupts
• Loopback mode for diagnostic support
FIGURE 16-1:
UART TRANSMITTER BLOCK DIAGRAM
Write
Write
UTX8
UxTXREG Low Byte
Load TSR
Transmit Control
– Control TSR
– Control Buffer
– Generate Flags
– Generate Interrupt
Control and Status bits
UxTXIF
Data
‘0’ (Start)
‘1’ (Stop)
Parity
Parity
Generator
Transmit Shift Register (UxTSR)
16 Divider
Control
Signals
16x Baud Clock
from Baud Rate
Generator
Internal Data Bus
UTXBRK
UxTX
Note:
x = 1 or 2.



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