PIC16F505 Microchip Technology, PIC16F505 Datasheet - Page 42

• Manufacturer Part Number: PIC16F505
• Description: (PIC1xF50x) 8-Bit Flash Microcontrollers
• Manufacturer: Microchip Technology

PIC12F508/509/16F505
REGISTER 7-2:
DS41236A-page 40
bit 11
bit 11-6 Unimplemented: Read as ‘0’
bit 5
bit 4
bit 3
bit 2-0
—
MCLRE: RB3/MCLR Pin Function Select bit
1 = RB3/MCLR pin function is MCLR
0 = RB3/MCLR pin function is digital I/O, MCLR internally tied to V
CP: Code Protection bit
1 = Code protection off
0 = Code protection on
WDTE: Watchdog Timer Enable bit
1 = WDT enabled
0 = WDT disabled
FOSC<1:0>: Oscillator Selection bits
111 = External RC oscillator/CLKOUT function on RB4/OSC2/CLKOUT pin
110 = External RC oscillator/RB4 function on RB4/OSC2/CLKOUT pin
101 = Internal RC oscillator/CLKOUT function on RB4/OSC2/CLKOUT pin
100 = Internal RC oscillator/RB4 function on RB4/OSC2/CLKOUT pin
011 = EC oscillator/RB4 function on RB4/OSC2/CLKOUT pin
010 = HS oscillator
001 = XT oscillator
000 = LP oscillator
Legend:
R = Readable bit
-n = Value at POR
Note 1: Refer to the “PIC16F505 Memory Programming Specifications” (DS41226) to determine how to
—
access the Configuration Word. The Configuration Word is not user addressable during device
operation.
CONFIGURATION WORD FOR PIC16F505
—
—
W = Writable bit
‘1’ = bit is set
—
Preliminary
—
MCLRE
U = Unimplemented bit, read as ‘0’
‘0’ = bit is cleared
CP
(1)
DD
WDTE
 2004 Microchip Technology Inc.
FOSC2
x = bit is unknown
FOSC1
FOSC0
bit 0