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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PIC16F676-E/ST датащи(PDF) 39 Page - Microchip Technology |
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PIC16F676-E/ST датащи(HTML) 39 Page - Microchip Technology |
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39 / 132 page  2010 Microchip Technology Inc. DS40039F-page 39 PIC16F630/676 6.0 COMPARATOR MODULE The PIC16F630/676 devices have one analog compar- ator. The inputs to the comparator are multiplexed with the RA0 and RA1 pins. There is an on-chip Comparator Voltage Reference that can also be applied to an input of the comparator. In addition, RA2 can be configured as the comparator output. The Comparator Control Register (CMCON), shown in Register 6-1, contains the bits to control the comparator. REGISTER 6-1: CMCON — COMPARATOR CONTROL REGISTER (ADDRESS: 19h) U-0 R-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 —COUT — CINV CIS CM2 CM1 CM0 bit 7 bit 0 bit 7 Unimplemented: Read as ‘0’ bit 6 COUT: Comparator Output bit When CINV = 0: 1 = VIN+ > VIN- 0 = VIN+ < VIN- When CINV = 1: 1 = VIN+ < VIN- 0 = VIN+ > VIN- bit 5 Unimplemented: Read as ‘0’ bit 4 CINV: Comparator Output Inversion bit 1 = Output inverted 0 = Output not inverted bit 3 CIS: Comparator Input Switch bit When CM2:CM0 = 110 or 101: 1 = VIN- connects to CIN+ 0 = VIN- connects to CIN- bit 2-0 CM2:CM0: Comparator Mode bits Figure 6-2 shows the Comparator modes and CM2:CM0 bit settings 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 |
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