PIC12F683-ESLASHMDQTP datasheet(169/176 Pages) MICROCHIP

169 / 176 page

DS41211D-page 167

PIC12F683

INDEX

A/D

Specifications.................................................... 133, 134

Absolute Maximum Ratings .............................................. 115

AC Characteristics

Industrial and Extended ............................................ 125

Load Conditions ........................................................ 124

ADC .................................................................................... 61

Acquisition Requirements ........................................... 67

Associated registers.................................................... 69

Block Diagram............................................................. 61

Calculating Acquisition Time....................................... 67

Channel Selection ....................................................... 61

Configuration............................................................... 61

Configuring Interrupt ................................................... 64

Conversion Clock........................................................ 62

Conversion Procedure ................................................ 64

GPIO Configuration..................................................... 61

Internal Sampling Switch (RSS) IMPEDANCE ................ 67

Interrupts..................................................................... 63

Operation .................................................................... 63

Operation During Sleep .............................................. 64

Reference Voltage (VREF)........................................... 62

Result Formatting........................................................ 63

Source Impedance...................................................... 67

Special Event Trigger.................................................. 64

Starting an A/D Conversion ........................................ 63

ADCON0 Register............................................................... 65

ADRESH Register (ADFM = 0) ........................................... 66

ADRESH Register (ADFM = 1) ........................................... 66

ADRESL Register (ADFM = 0)............................................ 66

ADRESL Register (ADFM = 1)............................................ 66

Analog Input Connection Considerations............................ 52

Analog-to-Digital Converter. See ADC

ANSEL Register .................................................................. 33

Assembler

MPASM Assembler................................................... 112

Block Diagrams

(CCP) Capture Mode Operation ................................. 76

ADC ............................................................................ 61

ADC Transfer Function ............................................... 68

Analog Input Model ............................................... 52, 68

CCP PWM................................................................... 78

Clock Source............................................................... 19

Comparator ................................................................. 51

Compare ..................................................................... 77

Crystal Operation ........................................................ 22

External RC Mode....................................................... 23

Fail-Safe Clock Monitor (FSCM) ................................. 29

GP1 Pin....................................................................... 37

GP2 Pin....................................................................... 37

GP3 Pin....................................................................... 38

GP4 Pin....................................................................... 38

GP5 Pin....................................................................... 39

In-Circuit Serial Programming Connections.............. 100

Interrupt Logic ............................................................. 93

MCLR Circuit............................................................... 86

On-Chip Reset Circuit ................................................. 85

PIC12F683.................................................................... 5

Resonator Operation................................................... 22

Timer1......................................................................... 44

Timer2 ........................................................................ 49

TMR0/WDT Prescaler ................................................ 41

Watchdog Timer (WDT).............................................. 96

Brown-out Reset (BOR)...................................................... 87

Associated .................................................................. 88

Calibration .................................................................. 87

Specifications ........................................................... 129

Timing and Characteristics ....................................... 128

C Compilers

MPLAB C18 .............................................................. 112

MPLAB C30 .............................................................. 112

Calibration Bits.................................................................... 85

Capture Module. See Capture/Compare/PWM (CCP)

Capture/Compare/PWM (CCP) .......................................... 75

Associated registers w/ Capture, Compare

and Timer1 ......................................................... 81

Associated registers w/ PWM and Timer2.................. 81

Capture Mode ............................................................. 76

CCPx Pin Configuration.............................................. 76

Compare Mode ........................................................... 77

CCPx Pin Configuration...................................... 77

Software Interrupt Mode ............................... 76, 77

Special Event Trigger ......................................... 77

Timer1 Mode Selection................................. 76, 77

Prescaler .................................................................... 76

PWM Mode ................................................................. 78

Duty Cycle .......................................................... 79

Effects of Reset .................................................. 80

Example PWM Frequencies and

Resolutions, 20 MHZ .................................. 79

Example PWM Frequencies and

Resolutions, 8 MHz .................................... 79

Operation in Sleep Mode.................................... 80

Setup for Operation ............................................ 80

System Clock Frequency Changes .................... 80

PWM Period ............................................................... 79

Setup for PWM Operation .......................................... 80

Timer Resources ........................................................ 75

CCP. See Capture/Compare/PWM (CCP)

CCP1CON Register............................................................ 75

Clock Sources

External Modes........................................................... 21

EC ...................................................................... 21

HS ...................................................................... 22

LP ....................................................................... 22

OST .................................................................... 21

RC ...................................................................... 23

XT ....................................................................... 22

Internal Modes............................................................ 23

Frequency Selection........................................... 25

HFINTOSC ......................................................... 23

INTOSC .............................................................. 23

INTOSCIO .......................................................... 23

LFINTOSC.......................................................... 25

Clock Switching .................................................................. 27

Code Examples

A/D Conversion .......................................................... 64

Assigning Prescaler to Timer0.................................... 42

Assigning Prescaler to WDT....................................... 42

Changing Between Capture Prescalers ..................... 76

Data EEPROM Read.................................................. 73

Data EEPROM Write .................................................. 73

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