PIC12F508 datasheet(101/106 Pages) MICROCHIP

101 / 106 page

2007 Microchip Technology Inc.

Preliminary

DS41236D-page 99

PIC12F508/509/16F505

INDEX

ALU ....................................................................................... 9

Assembler

MPASM Assembler..................................................... 64

Block Diagram

On-Chip Reset Circuit ................................................. 48

Timer0......................................................................... 33

TMR0/WDT Prescaler................................................. 37

Watchdog Timer.......................................................... 51

Brown-Out Protection Circuit .............................................. 52

C Compilers

MPLAB C18 ................................................................ 64

MPLAB C30 ................................................................ 64

Carry ..................................................................................... 9

Clocking Scheme ................................................................ 14

Code Protection ............................................................ 39, 53

Configuration Bits................................................................ 39

Configuration Word ............................................................. 41

Customer Change Notification Service ............................. 101

Customer Notification Service........................................... 101

Customer Support............................................................. 101

DC and AC Characteristics ................................................. 79

Development Support ......................................................... 63

Digit Carry ............................................................................. 9

Errata .................................................................................... 3

Family of Devices

PIC12F508/509/PIC16F505.......................................... 5

FSR..................................................................................... 26

I/O Interfacing ..................................................................... 29

I/O Ports .............................................................................. 29

I/O Programming Considerations........................................ 31

ID Locations .................................................................. 39, 53

INDF.................................................................................... 26

Indirect Data Addressing..................................................... 26

Instruction Cycle ................................................................. 14

Instruction Flow/Pipelining .................................................. 14

Instruction Set Summary..................................................... 56

Internet Address................................................................ 101

Loading of PC ..................................................................... 25

Memory Organization.......................................................... 15

Data Memory .............................................................. 16

Program Memory (PIC12F508/509)............................ 15

Program Memory (PIC16F505)................................... 16

Microchip Internet Web Site.............................................. 101

MPLAB ASM30 Assembler, Linker, Librarian ..................... 64

MPLAB ICD 2 In-Circuit Debugger ..................................... 65

MPLAB ICE 2000 High-Performance Universal

In-Circuit Emulator ...................................................... 65

MPLAB Integrated Development Environment Software.... 63

MPLAB PM3 Device Programmer ...................................... 65

MPLAB REAL ICE In-Circuit Emulator System .................. 65

MPLINK Object Linker/MPLIB Object Librarian .................. 64

Option Register................................................................... 22

OSC selection..................................................................... 39

OSCCAL Register............................................................... 24

Oscillator Configurations..................................................... 42

Oscillator Types

HS............................................................................... 42

LP ............................................................................... 42

RC .............................................................................. 42

XT ............................................................................... 42

PIC12F508/509/16F505 Device Varieties ............................ 7

PICSTART Plus Development Programmer....................... 66

POR

Device Reset Timer (DRT) ................................... 39, 50

PD............................................................................... 52

Power-on Reset (POR)............................................... 39

TO............................................................................... 52

PORTB ............................................................................... 29

Power-down Mode.............................................................. 53

Prescaler ............................................................................ 36

Program Counter ................................................................ 25

Q cycles .............................................................................. 14

RC Oscillator....................................................................... 43

Reader Response............................................................. 102

Read-Modify-Write.............................................................. 31

PIC12F508 ................................................................. 17

PIC12F509 ................................................................. 17

PIC16F505 ................................................................. 17

Registers

Special Function ......................................................... 18

Reset .................................................................................. 39

Reset on Brown-Out ........................................................... 52

Sleep ............................................................................ 39, 53

Software Simulator (MPLAB SIM) ...................................... 64

Special Features of the CPU .............................................. 39

Special Function Registers ................................................. 18

Stack................................................................................... 25

Status Register ............................................................... 9, 20

Timer0

Timer0 ........................................................................ 33

Timer0 (TMR0) Module .............................................. 33

TMR0 with External Clock .......................................... 35

Timing Diagrams and Specifications .................................. 73

Timing Parameter Symbology and Load Conditions .......... 73

TRIS Registers ................................................................... 29

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