PIC16F631_08 Datasheet, PDF (298/306 Pages) Microchip Technology – 20-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC16F631/677/685/687/689/690
CKP bit .............................................................................. 181
Clock Accuracy with Asynchronous Operation ................. 160
Clock Sources
External Modes ........................................................... 49
EC ....................................................................... 49
HS ....................................................................... 50
LP........................................................................ 50
OST..................................................................... 49
RC....................................................................... 51
XT ....................................................................... 50
Internal Modes ............................................................ 51
Frequency Selection ........................................... 53
HFINTOSC.......................................................... 51
HFINTOSC/LFINTOSC Switch Timing ............... 53
INTOSC .............................................................. 51
INTOSCIO........................................................... 51
LFINTOSC .......................................................... 53
Clock Switching................................................................... 55
CM1CON0 Register ............................................................ 98
CM2CON0 Register ............................................................ 99
CM2CON1 Register .......................................................... 101
Code Examples
A/D Conversion ......................................................... 112
Assigning Prescaler to Timer0 .................................... 82
Assigning Prescaler to WDT ....................................... 82
Changing Between Capture Prescalers .................... 128
Indirect Addressing ..................................................... 44
Initializing PORTA ....................................................... 59
Initializing PORTB ....................................................... 69
Initializing PORTC....................................................... 76
Loading the SSPBUF (SSPSR) Register .................. 182
Saving STATUS and W Registers in RAM ............... 211
Ultra Low-Power Wake-up Initialization ...................... 63
Write Verify ............................................................... 125
Code Protection ................................................................ 215
Comparator
C2OUT as T1 Gate ................................................... 101
Operation .................................................................... 93
Operation During Sleep .............................................. 97
Response Time ........................................................... 95
Synchronizing COUT w/Timer1 ................................ 101
Comparator Module ............................................................ 93
Associated registers.................................................. 106
C1 Output State Versus Input Conditions ................... 95
Comparator Voltage Reference (CVREF)
Response Time ........................................................... 95
Comparator Voltage Reference (CVREF) .......................... 104
Effects of a Reset........................................................ 97
Specifications ............................................................ 248
Comparators
C2OUT as T1 Gate ..................................................... 85
Effects of a Reset........................................................ 97
Specifications ............................................................ 248
Compare Module. See Enhanced Capture/
Compare/PWM (ECCP)
CONFIG Register.............................................................. 199
Configuration Bits.............................................................. 198
CPU Features ................................................................... 197
Customer Change Notification Service ............................. 301
Customer Notification Service........................................... 301
Customer Support ............................................................. 301
D
D/A bit ............................................................................... 180
Data EEPROM Memory .................................................... 119
Associated Registers ................................................ 126
DS41262E-page 296
Code Protection ........................................................ 125
Reading .................................................................... 122
Writing ...................................................................... 122
Data Memory ...................................................................... 26
Data/Address bit (D/A)...................................................... 180
DC Characteristics
Extended .................................................................. 236
Extended and Industrial ............................................ 237
Industrial and Extended ............................................ 233
Development Support ....................................................... 227
Device Overview................................................................... 9
E
ECCP. See Enhanced Capture/Compare/PWM
ECCPAS Register............................................................. 142
EEADR Register ............................................................... 120
EEADR Registers ............................................................. 119
EEADRH Registers........................................................... 119
EECON1 Register..................................................... 119, 121
EECON2 Register............................................................. 119
EEDAT Register ............................................................... 120
EEDATH Register............................................................. 120
EEPROM Data Memory
Avoiding Spurious Write ........................................... 125
Write Verify ............................................................... 125
Effects of Reset
PWM mode ............................................................... 132
Electrical Specifications .................................................... 231
Enhanced Capture/Compare/PWM .................................. 127
Enhanced Capture/Compare/PWM (ECCP)
Enhanced PWM Mode.............................................. 132
Auto-Restart ..................................................... 143
Auto-shutdown.................................................. 141
Direction Change in Full-Bridge Output Mode.. 139
Full-Bridge Application...................................... 137
Full-Bridge Mode .............................................. 137
Half-Bridge Application ..................................... 136
Half-Bridge Application Examples .................... 144
Half-Bridge Mode.............................................. 136
Output Relationships (Active-High and
Active-Low)............................................... 134
Output Relationships Diagram.......................... 135
Programmable Dead Band Delay..................... 144
Shoot-through Current ...................................... 144
Start-up Considerations .................................... 140
Specifications ........................................................... 247
Timer Resources ...................................................... 127
Enhanced Universal Synchronous Asynchronous
Receiver Transmitter (EUSART) ............................. 151
Errata .................................................................................... 8
EUSART ........................................................................... 151
Associated Registers
Baud Rate Generator ....................................... 163
Asynchronous Mode ................................................. 153
12-bit Break Transmit and Receive .................. 169
Associated Registers
Receive .................................................... 159
Transmit.................................................... 155
Auto-Wake-up on Break ................................... 168
Baud Rate Generator (BRG) ............................ 163
Clock Accuracy................................................. 160
Receiver ........................................................... 156
Setting up 9-bit Mode with Address Detect ...... 158
Transmitter ....................................................... 153
Baud Rate Generator (BRG)
Auto Baud Rate Detect..................................... 167
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