PIC12F508-I/SL 查看數據表（PDF） - Microchip Technology

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PIC12F508-I/SL

8/14-Pin, 8-Bit Flash Microcontrollers

Microchip Technology 

PIC12F508/509/16F505

REGISTER 7-1: CONFIGURATION WORD FOR PIC12F508/509(1)

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— MCLRE CP WDTE FOSC1 FOSC0

bit 11

bit 0

Legend:

R = Readable bit

-n = Value at POR

W = Writable bit

‘1’ = Bit is set

U = Unimplemented bit, read as ‘0’

‘0’ = Bit is cleared

x = Bit is unknown

bit 11-5 Unimplemented: Read as ‘0’

bit 4 MCLRE: GP3/MCLR Pin Function Select bit

1 = GP3/MCLR pin function is MCLR

0 = GP3/MCLR pin function is digital input, MCLR internally tied to VDD

bit 3 CP: Code Protection bit

1 = Code protection off

0 = Code protection on

bit 2 WDTE: Watchdog Timer Enable bit

1 = WDT enabled

0 = WDT disabled

bit 1-0

FOSC<1:0>: Oscillator Selection bits

11 = EXTRC = external RC oscillator

10 = INTRC = internal RC oscillator

01 = XT oscillator

00 = LP oscillator

Note 1: Refer to the “PIC12F508/509 Memory Programming Specifications” (DS41227) to determine how to

access the Configuration Word. The Configuration Word is not user addressable during device operation.

DS41236E-page 42

© 2009 Microchip Technology Inc.

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