PIC16F684 datasheet(183/192 Pages) MICROCHIP

183 / 192 page

DS41202F-page 181

PIC16F684

INDEX

A/D

Specifications.................................................... 147, 148

Absolute Maximum Ratings .............................................. 129

AC Characteristics

Industrial and Extended ............................................ 139

Load Conditions ........................................................ 138

ADC .................................................................................... 65

Acquisition Requirements ........................................... 72

Associated registers.................................................... 74

Block Diagram............................................................. 65

Calculating Acquisition Time....................................... 72

Channel Selection ....................................................... 66

Configuration............................................................... 66

Configuring Interrupt ................................................... 68

Conversion Clock........................................................ 66

Conversion Procedure ................................................ 68

Internal Sampling Switch (RSS) Impedance................ 72

Interrupts..................................................................... 67

Operation .................................................................... 68

Operation During Sleep .............................................. 68

Port Configuration ....................................................... 66

Reference Voltage (VREF)........................................... 66

Result Formatting........................................................ 67

Source Impedance...................................................... 72

Special Event Trigger.................................................. 68

Starting an A/D Conversion ........................................ 67

ADCON0 Register............................................................... 70

ADCON1 Register............................................................... 70

ADRESH Register (ADFM = 0) ........................................... 71

ADRESH Register (ADFM = 1) ........................................... 71

ADRESL Register (ADFM = 0)............................................ 71

ADRESL Register (ADFM = 1)............................................ 71

Analog Input Connection Considerations............................ 57

Analog-to-Digital Converter. See ADC

ANSEL Register .................................................................. 32

Assembler

MPASM Assembler................................................... 126

Block Diagrams

(CCP) Capture Mode Operation ................................. 80

ADC ............................................................................ 65

ADC Transfer Function ............................................... 73

Analog Input Model ............................................... 57, 73

CCP PWM................................................................... 82

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

Comparator 1 .............................................................. 56

Comparator 2 .............................................................. 56

Comparator Modes ..................................................... 58

Compare ..................................................................... 81

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

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

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

In-Circuit Serial Programming Connections.............. 114

Interrupt Logic ........................................................... 107

MCLR Circuit............................................................. 100

On-Chip Reset Circuit ................................................. 99

PIC16F684.................................................................... 5

PWM (Enhanced)........................................................ 85

RA0 Pins ..................................................................... 35

RA1 Pins ..................................................................... 36

RA2 Pin....................................................................... 36

RA3 Pin....................................................................... 37

RA4 Pin ...................................................................... 37

RA5 Pin ...................................................................... 38

RC0 and RC1 Pins ..................................................... 41

RC2 and RC3 Pins ..................................................... 41

RC4 Pin ...................................................................... 42

RC5 Pin ...................................................................... 42

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

Timer1 ........................................................................ 47

Timer2 ........................................................................ 53

TMR0/WDT Prescaler ................................................ 43

Watchdog Timer (WDT)............................................ 110

Brown-out Reset (BOR).................................................... 101

Associated ................................................................ 102

Calibration ................................................................ 101

Specifications ........................................................... 143

Timing and Characteristics ....................................... 142

C Compilers

MPLAB C18 .............................................................. 126

MPLAB C30 .............................................................. 126

Calibration Bits.................................................................... 99

Capture Module. See Enhanced Capture/

Compare/PWM (ECCP)

Capture/Compare/PWM (CCP)

Associated registers w/ Capture/Compare/PWM ....... 96

Capture Mode ............................................................. 80

CCP1 Pin Configuration ............................................. 80

Compare Mode ........................................................... 81

CCP1 Pin Configuration ..................................... 81

Software Interrupt Mode ............................... 80, 81

Special Event Trigger ......................................... 81

Timer1 Mode Selection................................. 80, 81

Prescaler .................................................................... 80

PWM Mode ................................................................. 82

Duty Cycle .......................................................... 83

Effects of Reset .................................................. 84

Example PWM Frequencies and

Resolutions, 20 MHZ .................................. 83

Example PWM Frequencies and

Resolutions, 8 MHz .................................... 83

Operation in Sleep Mode.................................... 84

Setup for Operation ............................................ 84

System Clock Frequency Changes .................... 84

PWM Period ............................................................... 83

Setup for PWM Operation .......................................... 84

CCP1CON (Enhanced) Register ........................................ 79

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

HFINTOSC/LFINTOSC Switch Timing ............... 25

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

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

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

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

CMCON0 Register.............................................................. 61

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