Datasheet

 2010 Microchip Technology Inc. DS41302D-page 205
PIC12F609/615/617/12HV609/615
INDEX
A
A/D
Specifications.................................................... 164, 165
Absolute Maximum Ratings ..............................................143
AC Characteristics
Industrial and Extended ............................................156
Load Conditions........................................................ 155
ADC
Acquisition Requirements ........................................... 86
Associated registers....................................................88
Block Diagram.............................................................79
Calculating Acquisition Time....................................... 86
Channel Selection....................................................... 80
Configuration............................................................... 80
Configuring Interrupt ...................................................83
Conversion Clock........................................................ 80
Conversion Procedure ................................................ 83
Internal Sampling Switch (R
SS) Impedance................ 86
Interrupts..................................................................... 81
Operation .................................................................... 82
Operation During Sleep ..............................................82
Port Configuration.......................................................80
Reference Voltage (V
REF)........................................... 80
Result Formatting........................................................ 82
Source Impedance...................................................... 86
Special Event Trigger.................................................. 82
Starting an A/D Conversion ........................................ 82
ADC (PIC12F615/617/HV615 Only) ................................... 79
ADCON0 Register............................................................... 84
ADRESH Register (ADFM = 0)...........................................85
ADRESH Register (ADFM = 1)...........................................85
ADRESL Register (ADFM = 0)............................................ 85
ADRESL Register (ADFM = 1)............................................ 85
Analog Input Connection Considerations............................ 68
Analog-to-Digital Converter. See ADC
ANSEL Register (PIC12F609/HV609) ................................ 45
ANSEL Register (PIC12F615/617/HV615) ......................... 45
APFCON Register............................................................... 24
Assembler
MPASM Assembler...................................................140
B
Block Diagrams
(CCP) Capture Mode Operation ................................. 90
ADC ............................................................................ 79
ADC Transfer Function ...............................................87
Analog Input Model............................................... 68, 87
Auto-Shutdown .........................................................101
CCP PWM...................................................................94
Clock Source............................................................... 37
Comparator.................................................................67
Compare .....................................................................92
Crystal Operation........................................................39
External RC Mode.......................................................40
GP0 and GP1 Pins...................................................... 47
GP2 Pins..................................................................... 48
GP3 Pin.......................................................................49
GP4 Pin.......................................................................50
GP5 Pin.......................................................................51
In-Circuit Serial Programming Connections.............. 125
Interrupt Logic...........................................................119
MCLR
Circuit............................................................. 111
On-Chip Reset Circuit...............................................110
PIC12F609/12HV609 ................................................... 7
PIC12F615/617/12HV615 ............................................ 8
PWM (Enhanced) ....................................................... 97
Resonator Operation .................................................. 39
Timer1 .................................................................. 57, 58
Timer2 ........................................................................ 65
TMR0/WDT Prescaler ................................................ 53
Watchdog Timer ....................................................... 122
Brown-out Reset (BOR).................................................... 112
Associated Registers................................................ 113
Specifications ........................................................... 160
Timing and Characteristics....................................... 159
C
C Compilers
MPLAB C18.............................................................. 140
MPLAB C30.............................................................. 140
Calibration Bits.................................................................. 109
Capture Module. See Enhanced Capture/Compare/
PWM (ECCP)
Capture/Compare/PWM (CCP)
Associated registers w/ Capture................................. 91
Associated registers w/ Compare............................... 93
Associated registers w/ PWM................................... 105
Capture Mode............................................................. 90
CCP1 Pin Configuration ............................................. 90
Compare Mode........................................................... 92
CCP1 Pin Configuration ..................................... 92
Software Interrupt Mode............................... 90, 92
Special Event Trigger......................................... 92
Timer1 Mode Selection................................. 90, 92
Prescaler .................................................................... 90
PWM Mode................................................................. 94
Duty Cycle .......................................................... 95
Effects of Reset .................................................. 96
Example PWM Frequencies and
Resolutions, 20 MHZ.................................. 95
Example PWM Frequencies and
Resolutions, 8 MHz .................................... 95
Operation in Sleep Mode.................................... 96
Setup for Operation............................................ 96
System Clock Frequency Changes .................... 96
PWM Period ............................................................... 95
Setup for PWM Operation .......................................... 96
CCP1CON (Enhanced) Register ........................................ 89
Clock Sources
External Modes........................................................... 38
EC ...................................................................... 38
HS ...................................................................... 39
LP....................................................................... 39
OST .................................................................... 38
RC ...................................................................... 40
XT....................................................................... 39
Internal Modes............................................................ 40
INTOSC.............................................................. 40
INTOSCIO .......................................................... 40
CMCON0 Register.............................................................. 72
CMCON1 Register.............................................................. 73
Code Examples
A/D Conversion .......................................................... 83
Assigning Prescaler to Timer0.................................... 54
Assigning Prescaler to WDT....................................... 54
Changing Between Capture Prescalers ..................... 90
Indirect Addressing..................................................... 25