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PIC12F683-E/MDQTP датащи(PDF) 35 Page - Microchip Technology |
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PIC12F683-E/MDQTP датащи(HTML) 35 Page - Microchip Technology |
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35 / 176 page ![]() © 2007 Microchip Technology Inc. DS41211D-page 33 PIC12F683 REGISTER 4-3: ANSEL: ANALOG SELECT REGISTER U-0 R/W-0 R/W-0 R/W-0 R/W-1 R/W-1 R/W-1 R/W-1 — ADCS2 ADCS1 ADCS0 ANS3 ANS2 ANS1 ANS0 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 Unimplemented: Read as ‘0’ bit 6-4 ADCS<2:0>: A/D Conversion Clock Select bits 000 = FOSC/2 001 = FOSC/8 010 = FOSC/32 x11 = FRC (clock derived from a dedicated internal oscillator = 500 kHz max) 100 = FOSC/4 101 = FOSC/16 110 = FOSC/64 bit 3-0 ANS<3:0>: Analog Select bits Analog select between analog or digital function on pins AN<3:0>, respectively. 1 = Analog input. Pin is assigned as analog input(1). 0 = Digital I/O. Pin is assigned to port or special function. Note 1: Setting a pin to an analog input automatically disables the digital input circuitry, weak pull-ups and interrupt-on-change, if available. The corresponding TRIS bit must be set to Input mode in order to allow external control of the voltage on the pin. |
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