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PIC18F258-E/LSQTP Datasheet(PDF) 268 Page - Microchip Technology |
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PIC18F258-E/LSQTP Datasheet(HTML) 268 Page - Microchip Technology |
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268 / 402 page  PIC18FXX8 DS41159E-page 266 © 2006 Microchip Technology Inc. REGISTER 24-1: CONFIG1H: CONFIGURATION REGISTER 1 HIGH (BYTE ADDRESS 300001h) REGISTER 24-2: CONFIG2L: CONFIGURATION REGISTER 2 LOW (BYTE ADDRESS 300002h) U-0 U-0 R/P-1 U-0 U-0 R/P-1 R/P-1 R/P-1 — — OSCSEN — — FOSC2 FOSC1 FOSC0 bit 7 bit 0 bit 7-6 Unimplemented: Read as ‘0’ bit 5 OSCSEN: Oscillator System Clock Switch Enable bit 1 = Oscillator system clock switch option is disabled (main oscillator is source) 0 = Oscillator system clock switch option is enabled (oscillator switching is enabled) bit 4-3 Unimplemented: Read as ‘0’ bit 2-0 FOSC2:FOSC0: Oscillator Selection bits 111 = RC oscillator w/OSC2 configured as RA6 110 = HS oscillator with PLL enabled/clock frequency = (4 x FOSC) 101 = EC oscillator w/OSC2 configured as RA6 100 = EC oscillator w/OSC2 configured as divide-by-4 clock output 011 = RC oscillator 010 = HS oscillator 001 = XT oscillator 000 = LP oscillator Legend: R = Readable bit P = Programmable bit U = Unimplemented bit, read as ‘0’ -n = Value when device is unprogrammed u = Unchanged from programmed state U-0 U-0 U-0 U-0 R/P-1 R/P-1 R/P-1 R/P-1 — — — — BORV1 BORV0 BOREN PWRTEN bit 7 bit 0 bit 7-4 Unimplemented: Read as ‘0’ bit 3-2 BORV1:BORV0: Brown-out Reset Voltage bits 11 = VBOR set to 2.0V 10 = VBOR set to 2.7V 01 = VBOR set to 4.2V 00 = VBOR set to 4.5V bit 1 BOREN: Brown-out Reset Enable bit 1 = Brown-out Reset enabled 0 = Brown-out Reset disabled bit 0 PWRTEN: Power-up Timer Enable bit 1 = PWRT disabled 0 = PWRT enabled Legend: R = Readable bit P = Programmable bit U = Unimplemented bit, read as ‘0’ -n = Value when device is unprogrammed u = Unchanged from programmed state |
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