12F629 datasheet(129/136 Pages) MICROCHIP

129 / 136 page

 2010 Microchip Technology Inc.

DS41190G-page 129

PIC12F629/675

INDEX

A/D ...................................................................................... 43

Acquisition Requirements ........................................... 47

Block Diagram............................................................. 43

Calculating Acquisition Time....................................... 47

Configuration and Operation....................................... 43

Effects of a RESET ..................................................... 48

Internal Sampling Switch (Rss) Impedance ................ 47

Operation During SLEEP ............................................ 48

PIC12F675 Converter Characteristics ...................... 103

Source Impedance...................................................... 47

Summary of Registers ................................................ 48

Absolute Maximum Ratings ................................................ 85

AC Characteristics

Industrial and Extended .............................................. 96

ADCON0

A/D Control register (ADDRESS

1Fh) .................................................................... 45

Additional Pin Functions ..................................................... 21

Interrupt-on-Change.................................................... 23

Weak Pull-up............................................................... 21

Analog Input Connection Considerations............................ 40

Analog-to-Digital Converter. See A/D

Assembler

MPASM Assembler..................................................... 82

Block Diagram

TMR0/WDT Prescaler................................................. 29

Block Diagrams

Analog Input Mode...................................................... 40

Analog Input Model ..................................................... 47

Comparator Output ..................................................... 40

Comparator Voltage Reference .................................. 41

GP0 and GP1 Pins...................................................... 24

GP2............................................................................. 25

GP3............................................................................. 25

GP4............................................................................. 26

GP5............................................................................. 26

On-Chip Reset Circuit ................................................. 57

RC Oscillator Mode..................................................... 56

Timer1......................................................................... 32

Watchdog Timer.......................................................... 67

Brown-out

Associated Registers .................................................. 60

Brown-out Detect (BOD) ..................................................... 59

Brown-out Detect Timing and Characteristics..................... 99

C Compilers

MPLAB C18 ................................................................ 82

Calibrated Internal RC Frequencies.................................... 97

CLKOUT ............................................................................. 56

Code Examples

Changing Prescaler .................................................... 31

Data EEPROM Read .................................................. 51

Data EEPROM Write .................................................. 51

Initializing GPIO .......................................................... 21

Saving STATUS and W Registers in RAM ................. 66

Write Verify ................................................................. 51

Code Protection .................................................................. 69

Comparator ......................................................................... 37

Associated Registers .................................................. 42

Configuration............................................................... 39

Effects of a RESET ..................................................... 41

I/O Operating Modes................................................... 39

Interrupts .................................................................... 42

Operation.................................................................... 38

Operation During SLEEP............................................ 41

Output......................................................................... 40

Reference ................................................................... 41

Response Time .......................................................... 41

Comparator Specifications................................................ 102

Comparator Voltage Reference Specifications................. 102

Configuration Bits ............................................................... 54

Configuring the Voltage Reference..................................... 41

Crystal Operation................................................................ 55

Customer Change Notification Service............................. 133

Customer Notification Service .......................................... 133

Customer Support............................................................. 133

Data EEPROM Memory

Associated Registers/Bits........................................... 52

Code Protection.......................................................... 52

EEADR Register......................................................... 49

EECON1 Register ...................................................... 49

EECON2 Register ...................................................... 49

EEDATA Register....................................................... 49

Data Memory Organization................................................... 9

DC Characteristics

Extended and Industrial.............................................. 93

Industrial ..................................................................... 88

Development Support......................................................... 81

Device Differences............................................................ 127

Device Migrations ............................................................. 128

Device Overview................................................................... 7

EEADR — EEPROM Address Register (ADDRESS

9Bh) ............................................................................ 49

EECON1 — EEPROM Control register (Address

9Ch)............................................................................ 50

EEPROM Data Memory

Reading ...................................................................... 51

Spurious Write ............................................................ 51

Write Verify ................................................................. 51

Writing ........................................................................ 51

Electrical Specifications ...................................................... 85

Errata .................................................................................... 5

Firmware Instructions ......................................................... 71

General Purpose Register File ............................................. 9

GPIO

Associated Registers.................................................. 27

GPIO — GPIO register (ADDRESS

05H)............................................................................ 21

GPIO Port ........................................................................... 21

GPIO, TRISIO Registers..................................................... 21

ID Locations........................................................................ 69

In-Circuit Debugger............................................................. 69

In-Circuit Serial Programming............................................. 69

Indirect Addressing, INDF and FSR Registers ................... 20

Instruction Format............................................................... 71

Instruction Set..................................................................... 71

ADDLW....................................................................... 73

ADDWF ...................................................................... 73

ANDLW....................................................................... 73

ANDWF ...................................................................... 73

MOVF ......................................................................... 76

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