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DVR 数据表(PDF) 312 Page - Microchip Technology |
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DVR 数据表(HTML) 312 Page - Microchip Technology |
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312 / 416 page ![]() PIC24FJ256GA705 FAMILY DS30010118D-page 312 2016-2018 Microchip Technology Inc. REGISTER 25-1: CMxCON: COMPARATOR x CONTROL REGISTERS (COMPARATORS 1 THROUGH 3) R/W-0 R/W-0 R/W-0 U-0 U-0 U-0 HS/R/W-0 HSC/R-0 CEN COE CPOL — — — CEVT COUT bit 15 bit 8 R/W-0 R/W-0 U-0 R/W-0 U-0 U-0 R/W-0 R/W-0 EVPOL1 EVPOL0 — CREF — — CCH1 CCH0 bit 7 bit 0 Legend: HS = Hardware Settable bit HSC = Hardware Settable/Clearable bit 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 15 CEN: Comparator Enable bit 1 = Comparator is enabled 0 = Comparator is disabled bit 14 COE: Comparator Output Enable bit 1 = Comparator output is present on the CxOUT pin 0 = Comparator output is internal only bit 13 CPOL: Comparator Output Polarity Select bit 1 = Comparator output is inverted 0 = Comparator output is not inverted bit 12-10 Unimplemented: Read as ‘0’ bit 9 CEVT: Comparator Event bit 1 = Comparator event that is defined by EVPOL<1:0> has occurred; subsequent triggers and interrupts are disabled until the bit is cleared 0 = Comparator event has not occurred bit 8 COUT: Comparator Output bit When CPOL = 0: 1 =VIN+ > VIN- 0 =VIN+ < VIN- When CPOL = 1: 1 =VIN+ < VIN- 0 =VIN+ > VIN- bit 7-6 EVPOL<1:0>: Trigger/Event/Interrupt Polarity Select bits 11 = Trigger/event/interrupt is generated on any change of the comparator output (while CEVT = 0) 10 = Trigger/event/interrupt is generated on transition of the comparator output: If CPOL = 0 (non-inverted polarity): High-to-low transition only. If CPOL = 1 (inverted polarity): Low-to-high transition only. 01 = Trigger/event/interrupt is generated on transition of comparator output: If CPOL = 0 (non-inverted polarity): Low-to-high transition only. If CPOL = 1 (inverted polarity): High-to-low transition only. 00 = Trigger/event/interrupt generation is disabled bit 5 Unimplemented: Read as ‘0’ |
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