2007 Microchip Technology Inc.
DS41262D-page 283
PIC16F631/677/685/687/689/690
INDEX
A
A/D
Specifications............................................252, 253, 254
Absolute Maximum Ratings ..............................................227
AC Characteristics
Industrial and Extended............................................238
Load Conditions........................................................237
ACK pulse.........................................................................184
ADC ..................................................................................107
Acquisition Requirements.........................................116
Associated registers..................................................118
Block Diagram...........................................................107
Calculating Acquisition Time.....................................116
Channel Selection.....................................................108
Configuration.............................................................108
Configuring Interrupt.................................................111
Conversion Clock......................................................108
Conversion Procedure..............................................111
Internal Sampling Switch (R
SS
) Impedance..............116
Interrupts...................................................................109
Operation ..................................................................111
Operation During Sleep ............................................111
Port Configuration.....................................................108
Reference Voltage (V
REF
).........................................108
Result Formatting......................................................110
Source Impedance....................................................116
Special Event Trigger................................................111
Starting an A/D Conversion ......................................110
ADCON0 Register.............................................................113
ADCON1 Register.............................................................114
ADRESH Register (ADFM = 0).........................................115
ADRESH Register (ADFM = 1).........................................115
ADRESL Register (ADFM = 0)..........................................115
ADRESL Register (ADFM = 1)..........................................115
Analog Input Connection Considerations..........................100
Analog-to-Digital Converter.
See
ADC
ANSEL Register..................................................................61
ANSELH Register ...............................................................61
Assembler
MPASM Assembler...................................................224
B
BAUDCTL Register...........................................................160
BF bit.................................................................................176
Block Diagrams
(CCP) Capture Mode Operation ...............................128
ADC ..........................................................................107
ADC Transfer Function .............................................117
Analog Input Model...........................................100, 117
CCP PWM.................................................................130
Clock Source...............................................................47
Comparator C1 ...........................................................94
Comparator C2 ...........................................................94
Compare...................................................................129
Crystal Operation........................................................50
EUSART Receive .....................................................150
EUSART Transmit ....................................................149
External RC Mode.......................................................51
Fail-Safe Clock Monitor (FSCM).................................57
In-Circuit Serial Programming Connections..............212
Interrupt Logic...........................................................205
On-Chip Reset Circuit...............................................196
PIC16F631....................................................................9
PIC16F677..................................................................10
PIC16F685 ................................................................. 11
PIC16F687/689 .......................................................... 12
PIC16F690 ................................................................. 13
PWM (Enhanced) ..................................................... 133
RA0 Pins..................................................................... 64
RA1 Pins..................................................................... 65
RA2 Pin ...................................................................... 65
RA3 Pin ...................................................................... 66
RA4 Pin ...................................................................... 66
RA5 Pin ...................................................................... 67
RB4 Pin ...................................................................... 71
RB5 Pin ...................................................................... 72
RB6 Pin ...................................................................... 73
RB7 Pin ...................................................................... 74
RC0 and RC1 Pins ..................................................... 77
RC2 and RC3 Pins ..................................................... 77
RC4 Pin ...................................................................... 78
RC5 Pin ...................................................................... 78
RC6 Pin ...................................................................... 79
RC7 Pin ...................................................................... 79
Resonator Operation .................................................. 50
SSP (I
2
C Mode)........................................................ 184
SSP (SPI Mode) ....................................................... 175
Timer1 ........................................................................ 84
Timer2 ........................................................................ 91
TMR0/WDT Prescaler ................................................ 81
Watchdog Timer (WDT)............................................ 208
Break Character (12-bit) Transmit and Receive............... 167
Brown-out Reset (BOR).................................................... 198
Associated................................................................ 199
Specifications ........................................................... 242
Timing and Characteristics....................................... 241
C
C Compilers
MPLAB C18.............................................................. 224
MPLAB C30.............................................................. 224
Capture Module.
See
Enhanced Capture/Compare/
PWM(ECCP)
Capture/Compare/PWM (CCP)
Associated registers w/ Capture/Compare/PWM ..... 148
Capture Mode........................................................... 128
CCPx Pin Configuration............................................ 128
Compare Mode......................................................... 129
CCPx Pin Configuration.................................... 129
Software Interrupt Mode........................... 128, 129
Special Event Trigger....................................... 129
Timer1 Mode Selection............................. 128, 129
Prescaler .................................................................. 128
PWM Mode............................................................... 130
Duty Cycle........................................................ 131
Effects of Reset................................................ 132
Example PWM Frequencies and
Resolutions, 20 MHZ................................ 131
Example PWM Frequencies and
Resolutions, 8 MHz .................................. 131
Operation in Sleep Mode.................................. 132
Setup for Operation.......................................... 132
System Clock Frequency Changes.................. 132
PWM Period ............................................................. 131
Setup for PWM Operation ........................................ 132
CCPxCON (Enhanced) Register ...................................... 127
CKE bit ............................................................................. 176
CKP bit ............................................................................. 177