PIC16F631 datasheet(290/294 Pages) MICROCHIP

290 / 294 page

PIC16F631/677/685/687/689/690

DS41262D-page 288

Timer2

Associated registers.................................................... 92

Timers

Timer1

T1CON ................................................................ 88

Timer2

T2CON ................................................................ 92

Timing Diagrams

A/D Conversion ......................................................... 253

A/D Conversion (Sleep Mode) .................................. 254

Asynchronous Reception .......................................... 156

Asynchronous Transmission ..................................... 152

Asynchronous Transmission (Back to Back) ............ 152

Auto Wake-up Bit (WUE) During Normal Operation . 166

Auto Wake-up Bit (WUE) During Sleep .................... 167

Automatic Baud Rate Calculator ............................... 165

Brown-out Reset (BOR) ............................................ 241

Brown-out Reset Situations ...................................... 198

CLKOUT and I/O....................................................... 240

Clock Synchronization .............................................. 192

Clock Timing ............................................................. 238

Comparator Output ..................................................... 93

Enhanced Capture/Compare/PWM (ECCP) ............. 244

EUSART Synchronous Receive (Master/Slave) ....... 246

EUSART Synchronous Transmission

(Master/Slave)................................................... 246

Fail-Safe Clock Monitor (FSCM) ................................. 58

Full-Bridge PWM Output ........................................... 138

Half-Bridge PWM Output .................................. 136, 143

I2C Bus Data ............................................................. 250

I2C Bus Start/Stop Bits.............................................. 249

I2C Reception (7-bit Address) ................................... 186

I2C Slave Mode (Transmission, 10-bit Address) ....... 190

I2C Slave Mode with SEN = 0 (Reception,

10-bit Address).................................................. 188

I2C Transmission (7-bit Address) .............................. 189

INT Pin Interrupt........................................................ 206

Internal Oscillator Switch Timing................................. 54

PWM Auto-shutdown

Auto-restart Enabled ......................................... 142

Firmware Restart .............................................. 142

PWM Direction Change ............................................ 139

PWM Direction Change at Near 100% Duty Cycle ... 140

PWM Output (Active-High)........................................ 134

PWM Output (Active-Low) ........................................ 135

Reset, WDT, OST and Power-up Timer ................... 241

Send Break Character Sequence ............................. 168

Slave Synchronization .............................................. 181

SPI Master Mode (CKE = 1, SMP = 1) ..................... 247

SPI Mode (Master Mode) .......................................... 180

SPI Mode (Slave Mode with CKE = 0) ...................... 182

SPI Mode (Slave Mode with CKE = 1) ...................... 182

SPI Slave Mode (CKE = 0) ....................................... 248

SPI Slave Mode (CKE = 1) ....................................... 248

Synchronous Reception (Master Mode, SREN) ....... 172

Synchronous Transmission....................................... 170

Synchronous Transmission (Through TXEN) ........... 170

Time-out Sequence

Case 1............................................................... 200

Case 2............................................................... 200

Case 3............................................................... 200

Timer0 and Timer1 External Clock ........................... 243

Timer1 Incrementing Edge.......................................... 87

Two Speed Start-up .................................................... 56

Wake-up from Interrupt ............................................. 211

Timing Parameter Symbology .......................................... 237

Timing Requirements

I2C Bus Data............................................................. 251

I2C Bus Start/Stop Bits ............................................. 250

SPI Mode .................................................................. 249

TRISA

Registers .................................................................... 59

TRISA Register................................................................... 59

TRISB

Registers .................................................................... 69

TRISB Register................................................................... 70

TRISC

Registers .................................................................... 76

TRISC Register................................................................... 76

Two-Speed Clock Start-up Mode........................................ 55

TXREG ............................................................................. 151

TXSTA Register................................................................ 158

BRGH Bit .................................................................. 161

UA..................................................................................... 176

Ultra Low-Power Wake-up .............. 14, 16, 18, 20, 22, 60, 63

Update Address bit, UA .................................................... 176

Voltage Reference (VR)

Specifications ........................................................... 245

Voltage Reference. See Comparator

Voltage Reference (CVREF)

Voltage References

Associated registers ................................................. 106

VP6 Stabilization ...................................................... 105

VRCON Register .............................................................. 106

VREF. SEE ADC Reference Voltage

Wake-up on Break ............................................................ 166

Wake-up Using Interrupts ................................................. 210

Watchdog Timer (WDT).................................................... 208

Associated registers ................................................. 209

Clock Source ............................................................ 208

Modes ....................................................................... 208

Period ....................................................................... 208

Specifications ........................................................... 242

WCOL bit .......................................................................... 177

WDTCON Register ........................................................... 209

WPUA Register................................................................... 62

WPUB Register................................................................... 70

Write Collision Detect bit (WCOL) .................................... 177

WWW Address ................................................................. 289

WWW, On-Line Support ....................................................... 8

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