PIC16F684-ESLASHST datasheet(157/164 Pages) MICROCHIP

157 / 164 page

 2004 Microchip Technology Inc.

Preliminary

DS41202C-page 155

PIC16F684

INDEX

A/D ...................................................................................... 63

Acquisition Requirements ........................................... 68

Analog Port Pins ......................................................... 63

Associated Registers .................................................. 70

Block Diagram............................................................. 63

Calculating Acquisition Time....................................... 68

Channel Selection ....................................................... 63

Configuration and Operation....................................... 63

Configuring.................................................................. 67

Configuring Interrupt ................................................... 67

Conversion Clock........................................................ 64

Effects of a Reset........................................................ 69

Internal Sampling Switch (RSS) Impedance................ 68

Operation During Sleep .............................................. 69

Output Format............................................................. 65

Reference Voltage (VREF)........................................... 63

Source Impedance...................................................... 68

Special Event Trigger.................................................. 69

Specifications............................................ 144, 145, 146

Starting a Conversion ................................................. 64

Using the ECCP Trigger ............................................. 69

Absolute Maximum Ratings .............................................. 127

AC Characteristics

Industrial and Extended ............................................ 137

Load Conditions ........................................................ 136

ADCON0 Register............................................................... 66

ADCON1 Register............................................................... 66

Analog Front-end (AFE)

Power-On Reset ......................................................... 95

Analog Input Connection Considerations............................ 56

Analog-to-Digital Converter. See A/D

ANSEL Register .................................................................. 65

Assembler

MPASM Assembler................................................... 121

Block Diagrams

A/D .............................................................................. 63

Analog Input Model ............................................... 56, 68

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

Comparator 1 .............................................................. 58

Comparator 2 .............................................................. 58

Comparator Modes ..................................................... 57

Comparator Voltage Reference (CVREF) .................... 60

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

Fail-Safe Clock Monitor (FSCM) ................................. 27

In-Circuit Serial Programming Connections.............. 109

Interrupt Logic ........................................................... 102

MCLR Circuit............................................................... 95

On-Chip Reset Circuit ................................................. 94

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

PWM (Enhanced)........................................................ 78

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

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

RA2 Pin....................................................................... 37

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

RA4 Pin....................................................................... 38

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

RC0 and RC1 Pins...................................................... 40

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

RC4 Pin....................................................................... 41

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

Resonator Operation................................................... 21

System Clock.............................................................. 19

Timer1 ........................................................................ 49

Timer2 ........................................................................ 54

TMR0/WDT Prescaler ................................................ 45

Watchdog Timer (WDT)............................................ 105

Brown-out Detect (BOD)..................................................... 96

Associated .................................................................. 97

Calibration .................................................................. 96

Specifications ........................................................... 141

Timing and Characteristics ....................................... 140

C Compilers

MPLAB C17 .............................................................. 122

MPLAB C18 .............................................................. 122

MPLAB C30 .............................................................. 122

CALIB Register ................................................................... 93

Calibration Bits.................................................................... 93

Capture Module. See Enhanced

Capture/Compare/PWM (ECCP)

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

CCPR1H Register............................................................... 75

CCPR1L Register ............................................................... 75

CMCON0 Register.............................................................. 55

CMCON1 Register.............................................................. 59

Code Examples

Assigning Prescaler to Timer0.................................... 47

Assigning Prescaler to WDT....................................... 47

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

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

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

Indirect Addressing ..................................................... 17

Initializing A/D ............................................................. 67

Initializing PORTA ...................................................... 31

Initializing PORTC ...................................................... 40

Saving Status and W Registers in RAM ................... 104

Ultra Low-Power Wake-up Initialization ...................... 34

Write Verify ................................................................. 73

Code Protection ................................................................ 108

Comparator Voltage Reference (CVREF)............................ 60

Accuracy/Error............................................................ 60

Associated registers ................................................... 62

Configuring ................................................................. 60

Effects of a Reset ....................................................... 61

Response Time .......................................................... 61

Specifications ........................................................... 144

Comparators ....................................................................... 55

Associated Registers.................................................. 62

C2OUT as T1 Gate............................................... 50, 59

Configurations ............................................................ 57

Effects of a Reset ....................................................... 61

Interrupts .................................................................... 59

Operation .................................................................... 56

Operation During Sleep .............................................. 61

Outputs ....................................................................... 59

Response Time .......................................................... 61

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

Synchronizing C2OUT w/ Timer1 ............................... 59

Compare Module. See Enhanced

Capture/Compare/PWM (ECCP)

CONFIG Register ............................................................... 92

Configuration Bits ............................................................... 92

CPU Features ..................................................................... 91

PIC16F684-E/ST Datasheet(PDF) 157 Page - Microchip Technology

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