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PIC16C50X Datasheet(PDF) 7 Page - Microchip Technology |
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PIC16C50X Datasheet(HTML) 7 Page - Microchip Technology |
7 / 14 page 2001 Microchip Technology Inc. DS30603B-page 7 PIC16C50X 3.0 CONFIGURATION WORD The PIC16C50X family members have several config- uration bits. These bits can be programmed (reads ’0’), or left unprogrammed (reads ’1’), to select various device configurations. Figure 3-1 provides an overview of configuration bits. FIGURE 3-1: CONFIGURATION WORD BIT MAP Bit Number: 11 10 9 8 7 6 54 3 2 FOSC2 1 FOSC1 0 FOSC0 WDTE bit 11-6, 4: CP: Code Protection bits(1) (2) bit 5: 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 VDD bit 3: WDTE: Watchdog Timer Enable bit 1 = WDT enabled 0 = WDT disabled bit 2-0: FOSC2:FOSC0: 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 = Invalid selection 010 = HS oscillator 001 = XT oscillator 000 = LP oscillator Note 1: All of the CP pins have to be given the same value to enable the code protection scheme listed. 2: 03FFh is always uncode protected on the PIC16C505. This location contains the MOVLW xx calibration instruction for the INTRC. MCLRE CP CP CP CP CP CP CP Register: CONFIG Address 0FFFh |
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