Datasheet

PIC16F882/883/884/886/887
DS41291F-page 316 © 2009 Microchip Technology Inc.
Prescaler...................................................................126
PWM Mode ...............................................................128
Duty Cycle.........................................................129
Effects of Reset.................................................131
Example PWM Frequencies and
Resolutions, 20 MHZ ................................130
Example PWM Frequencies and
Resolutions, 8 MHz...................................130
Operation in Sleep Mode ..................................131
Setup for Operation...........................................131
System Clock Frequency Changes................... 131
PWM Period..............................................................129
Setup for PWM Operation.........................................131
Timer Resources.......................................................125
CCP1CON (Enhanced) Register.......................................124
CCP2CON Register ..........................................................125
Clock Accuracy with Asynchronous Operation ................. 160
Clock Sources
External Modes ...........................................................63
EC.......................................................................63
HS.......................................................................64
LP........................................................................64
OST.....................................................................63
RC.......................................................................65
XT .......................................................................64
Internal Modes ............................................................ 65
Frequency Selection ...........................................67
HFINTOSC..........................................................65
HFINTOSC/LFINTOSC Switch Timing ...............67
INTOSC ..............................................................65
INTOSCIO...........................................................65
LFINTOSC ..........................................................67
Clock Switching...................................................................69
CM1CON0 Register ............................................................88
CM2CON0 Register ............................................................89
CM2CON1 Register ............................................................91
Code Examples
A/D Conversion.........................................................103
Assigning Prescaler to Timer0....................................74
Assigning Prescaler to WDT .......................................74
Changing Between Capture Prescalers....................126
Indirect Addressing .....................................................37
Initializing PORTA.......................................................39
Initializing PORTB.......................................................47
Initializing PORTC.......................................................53
Initializing PORTD.......................................................57
Initializing PORTE.......................................................59
Loading the SSPBUF Register .................................184
Saving STATUS and W Registers in RAM ...............223
Ultra Low-Power Wake-up Initialization ...................... 41
Write Verify ...............................................................120
Writing to Flash Program Memory ............................119
Code Protection ................................................................227
Comparator
C2OUT as T1 Gate...............................................77, 91
Effects of a Reset........................................................87
Operation ....................................................................83
Operation During Sleep ..............................................87
Response Time...........................................................85
Specifications............................................................262
Synchronizing COUT w/Timer1 ..................................91
Comparator Module ............................................................83
Associated Registers ..................................................97
C1 Output State Versus Input Conditions...................85
Comparator Voltage Reference (CV
REF)
Response Time........................................................... 85
Comparator Voltage Reference (CV
REF)............................ 94
Effects of a Reset ....................................................... 87
Specifications ........................................................... 262
Compare Module. See Enhanced Capture/
Compare/PWM (ECCP)
CONFIG1 Register ........................................................... 210
CONFIG2 Register ........................................................... 211
Configuration Bits ............................................................. 210
CPU Features................................................................... 209
Customer Change Notification Service............................. 323
Customer Notification Service .......................................... 323
Customer Support............................................................. 323
D
Data EEPROM Memory.................................................... 111
Associated Registers................................................ 121
Code Protection........................................................ 120
Reading .................................................................... 114
Writing ...................................................................... 114
Data Memory ...................................................................... 22
DC Characteristics
Extended .................................................................. 250
Industrial................................................................... 249
Industrial and Extended............................ 247, 248, 251
Development Support....................................................... 241
Device Overview................................................................. 13
E
ECCP. See Enhanced Capture/Compare/PWM
ECCPAS Register............................................................. 142
EEADR Register............................................................... 112
EEADR Registers ............................................................. 111
EEADRH Registers........................................................... 111
EECON1 Register..................................................... 111, 113
EECON2 Register............................................................. 111
EEDAT Register ............................................................... 112
EEDATH Register............................................................. 112
EEPROM Data Memory
Avoiding Spurious Write ........................................... 120
Write Verify............................................................... 120
Effects of Reset
PWM mode............................................................... 131
Electrical Specifications.................................................... 245
Enhanced Capture/Compare/PWM .................................. 123
Enhanced Capture/Compare/PWM (ECCP)
Enhanced PWM Mode.............................................. 132
Auto-Restart ..................................................... 143
Auto-shutdown.................................................. 141
Direction Change in Full-Bridge Output Mode.. 138
Full-Bridge Application...................................... 136
Full-Bridge Mode .............................................. 136
Half-Bridge Application..................................... 135
Half-Bridge Application Examples .................... 144
Half-Bridge Mode.............................................. 135
Output Relationships (Active-High and
Active-Low).............................................. 133
Output Relationships Diagram.......................... 134
Programmable Dead Band Delay..................... 144
Shoot-through Current...................................... 144
Start-up Considerations.................................... 140
Specifications ........................................................... 261
Timer Resources ...................................................... 124
Enhanced Universal Synchronous
Asynchronous Receiver Transmitter (EUSART)....... 151
Errata .................................................................................. 12