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DSPIC33FJ12MC02ESS датащи(PDF) 208 Page - Microchip Technology |
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DSPIC33FJ12MC02ESS датащи(HTML) 208 Page - Microchip Technology |
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208 / 284 page ![]() dsPIC33FJ12MC201/202 DS70265B-page 206 Preliminary © 2007 Microchip Technology Inc. REGISTER 19-4: AD1CHS123: ADC1 INPUT CHANNEL 1, 2, 3 SELECT REGISTER U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 — — — — — CH123NB<1:0> CH123SB bit 15 bit 8 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 — — — — — CH123NA<1:0> CH123SA 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 15-11 Unimplemented: Read as ‘0’ bit 10-9 CH123NB<1:0>: Channel 1, 2, 3 Negative Input Select for Sample B bits If AD12B = 1: 11 = Reserved 10 = Reserved 01 = Reserved 00 = Reserved If AD12B = 0: 11 = Reserved 10 = Reserved 01 = CH1, CH2, CH3 negative input is VREF- 00 = CH1, CH2, CH3 negative input is VREF- bit 8 CH123SB: Channel 1, 2, 3 Positive Input Select for Sample B bit dsPIC33FJ12MC201 devices only: If AD12B = 1: 1 = Reserved 0 = Reserved If AD12B = 0: 1 = CH1 positive input is AN3, CH2 and CH3 positive inputs are not connected 0 = CH1 positive input is AN0, CH2 positive input is AN1, CH3 positive input is AN2 dsPIC33FJ12MC202 devices only: If AD12B = 1: 1 = Reserved 0 = Reserved If AD12B = 0: 1 = CH1 positive input is AN3, CH2 positive input is AN4, CH3 positive input is AN5 0 = CH1 positive input is AN0, CH2 positive input is AN1, CH3 positive input is AN2 bit 7-3 Unimplemented: Read as ‘0’ |
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