PIC18FXX20
U
V
Universal Synchronous Asynchronous Receiver
Transmitter. See USART
Voltage Reference Specifications .................................... 317
W
USART
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
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
X
XORLW ............................................................................ 299
XORWF ........................................................................... 300
DS39609A-page 360
Advance Information
2003 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
