PIC16F688
Timer0 Module ....................................................................45
Timer1
U
Ultra Low-Power Wake-up........................................ 6, 31, 34
USART
Associated Registers ..................................................52
Asynchronous Counter Mode .....................................52
Reading and Writing ...........................................52
External Clock Requirements ...................................150
Interrupt.......................................................................50
Modes of Operations...................................................50
Operation During Sleep ..............................................52
Oscillator.....................................................................52
Prescaler.....................................................................50
Timer1 Gate
Asynchronous Mode................................................... 86
12-bit BreakTransmit and Receive ..................... 92
Associated Registers, Receive........................... 90
Associated Registers, Transmit.......................... 88
Auto Wake-up on SYNC Break .......................... 91
Receiver ............................................................. 89
Setting up 9-bit Mode with Address Detect ........ 89
Baud Rate Generator (BRG)
Auto Baud Rate Detect....................................... 84
Baud Rate Error, Calculating.............................. 81
Baud Rates, Asynchronous Modes .................... 82
Formulas............................................................. 81
High Baud Rate Select (BRGH Bit) .................... 81
Sampling............................................................. 81
Serial Port Enable (SPEN Bit) .................................... 77
Synchronous Master Mode......................................... 93
Associated Registers, Reception........................ 96
Associated Registers, Transmit.......................... 94
Reception ........................................................... 95
Requirements, Synchronous Receive .............. 151
Requirements, Synchronous Transmission...... 151
Timing Diagram, Synchronous Receive ........... 151
Timing Diagram, Synchronous Transmission... 151
Transmission ...................................................... 93
Synchronous Slave Mode........................................... 97
Associated Registers, Receive........................... 98
Associated Registers, Transmit.......................... 97
Reception ........................................................... 98
Transmission ...................................................... 97
Inverting Gate .....................................................50
Selecting Source...........................................50, 58
Synchronizing C2OUT w/ Timer1 .......................58
TMR1H Register .........................................................49
TMR1L Register..........................................................49
Timer1 Module with Gate Control .......................................49
Timing Diagrams
A/D Conversion.........................................................154
A/D Conversion (Sleep Mode) ..................................155
Asynchronous Reception ............................................90
Asynchronous Transmission.......................................87
Asynchronous Transmission (Back to Back) ..............87
Auto Wake-up Bit (WUE) During Sleep ......................91
Automatic Baud Rate Calculator.................................85
Auto-Wake-up Bit (WUE) During Normal Operation ...91
Brown-out Detect (BOD)...........................................148
Brown-out Detect Situations .....................................104
CLKOUT and I/O.......................................................147
Comparator Output .....................................................54
External Clock...........................................................145
Fail-Safe Clock Monitor (FSCM).................................29
INT Pin Interrupt........................................................111
Reset, WDT, OST and Power-up Timer ...................148
Send Break Character Sequence ...............................92
Synchronous Reception (Master Mode, SREN) .........95
Synchronous Transmission.........................................93
Synchronous Transmission (Through TXEN) .............94
Time-out Sequence...................................................106
Case 3...............................................................106
Timer0 and Timer1 External Clock ...........................150
Timer1 Incrementing Edge..........................................50
Two Speed Start-up ....................................................28
USART Synchronous Receive (Master/Slave) .........151
USART Synchronous Transmission (Master/Slave) .151
Wake-up from Interrupt .............................................116
Timing Parameter Symbology...........................................144
TMR1H Register .................................................................49
TMR1L Register..................................................................49
TRISA..................................................................................31
TRISA Register ...................................................................32
TRISC Register...................................................................43
Two-Speed Clock Start-up Mode........................................27
TXREG................................................................................86
TXSTA Register ..................................................................78
BRGH Bit ....................................................................81
V
Voltage Reference.
See Comparator Voltage Reference (CVREF)
VRCON Register ................................................................ 61
W
Wake-up Using Interrupts................................................. 115
Watchdog Timer (WDT).................................................... 113
Associated Registers................................................ 114
Clock Source ............................................................ 113
Modes....................................................................... 113
Period ....................................................................... 113
Specifications ........................................................... 149
WDTCON Register ....................................................... 9, 114
WPUA Register................................................................... 32
WWW, On-Line Support ....................................................... 3
DS41203B-page 168
Preliminary
2004 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
