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PIC18F4580-E/ML 데이터시트(PDF) 254 Page - Microchip Technology |
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PIC18F4580-E/ML 데이터시트(HTML) 254 Page - Microchip Technology |
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254 / 490 page ![]() PIC18F2480/2580/4480/4580 DS39637D-page 254 © 2009 Microchip Technology Inc. REGISTER 20-2: ADCON1: A/D CONTROL REGISTER 1 U-0 U-0 R/W-0 R/W-0 R/W-0(1) R/W-q(1) R/W-q(1) R/W-q(1) — — VCFG1 VCFG0 PCFG3 PCFG2 PCFG1 PCFG0 bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 7-6 Unimplemented: Read as ‘0’ bit 5 VCFG1: Voltage Reference Configuration bit (VREF- source) 1 = VREF- (AN2) 0 = AVSS bit 4 VCFG0: Voltage Reference Configuration bit (VREF+ source) 1 = VREF+ (AN3) 0 = AVDD bit 3-0 PCFG<3:0>: A/D Port Configuration Control bits: Note 1: The POR value of the PCFG bits depends on the value of the PBADEN bit in Configuration Register 3H. When PBADEN = 1, PCFG<3:0> = 0000; when PBADEN = 0, PCFG<3:0> = 0111. 2: AN5 through AN7 are available only on PIC18F4X80 devices. A = Analog input D = Digital I/O PCFG<3:0> 0000(1) A AAA AAA A A A A 0001 A AAA AAA A A A A 0010 A AAA AAA A A A A 0011 A AAA AAA A A A A 0100 A AAA AAA A A A A 0101 D AAA AAA A A A A 0110 D D AA AAA A A A A 0111(1) D D D A AAA A A A A 1000 D D D D AAA A A A A 1001 DD D D D A A A A A A 1010 D D D DDD A A A A A 1011 D D D DDDD A A A A 1100 D D D DDDD D A A A 1101 D D D DDDD D D A A 1110 D D D DDDD D D D A 1111 D D D DDDD D D D D |
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