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PIC18FXX20 Datasheet, PDF (362/366 Pages) Microchip Technology – 64/80-Pin High Performance 1 Mbit Enhanced FLASH Microcontrollers with A/D
PIC18FXX20
U
Universal Synchronous Asynchronous Receiver
Transmitter. See USART
USART
Asynchronous Mode ................................................ 204
Associated Registers, Receive ........................ 207
Associated Registers, Transmit ....................... 205
Receiver ........................................................... 206
Setting up 9-bit Mode with Address Detect ...... 206
Transmitter ....................................................... 204
Baud Rate Generator (BRG) .................................... 200
Associated Registers ....................................... 200
Baud Rate Error, Calculating ........................... 200
Baud Rate Formula .......................................... 200
Baud Rates for Asynchronous Mode
(BRGH = 0) .............................................. 202
Baud Rates for Asynchronous Mode
(BRGH = 1) .............................................. 203
Baud Rates for Synchronous Mode ................. 201
High Baud Rate Select (BRGH Bit) .................. 200
Sampling .......................................................... 200
Serial Port Enable (SPEN Bit) .................................. 197
Synchronous Master Mode ...................................... 208
Associated Registers, Reception ..................... 210
Associated Registers, Transmit ....................... 208
Reception ......................................................... 210
Transmission .................................................... 208
Synchronous Slave Mode ........................................ 211
Associated Registers, Receive ........................ 212
Associated Registers, Transmit ....................... 211
Reception ......................................................... 212
Transmission .................................................... 211
USART Synchronous Receive Requirements .................. 338
USART Synchronous Transmission Requirements ......... 338
V
Voltage Reference Specifications .................................... 317
W
Wake-up from SLEEP ...............................................239, 252
Using Interrupts ....................................................... 252
Watchdog Timer (WDT) ............................................239, 250
Associated Registers ............................................... 251
Control Register ....................................................... 250
Postscaler ................................................................ 251
Programming Considerations .................................. 250
RC Oscillator ............................................................ 250
Time-out Period ....................................................... 250
WCOL .............................................................................. 185
WCOL Status Flag .................................... 185, 186, 187, 190
WDT Postscaler ............................................................... 250
WWW, On-Line Support ...................................................... 5
X
XORLW ............................................................................ 299
XORWF ........................................................................... 300
DS39609A-page 360
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