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ANSELA 数据表(PDF) 127 Page - Microchip Technology |
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ANSELA 数据表(HTML) 127 Page - Microchip Technology |
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127 / 222 page  2013 Microchip Technology Inc. DS22331A-page 127 MCP19111 22.3 ADC Register Definitions The following registers are used to control the operation of the ADC: REGISTER 22-1: ADCON0: A/D CONTROL REGISTER 0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 — CHS4 CHS3 CHS2 CHS1 CHS0 GO/DONE ADON bit 7 bit 0 Legend: R = Readable bit P = Programmable 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 6-2 CHS<4:0>: Analog Channel Select bits 00000 = VIN_ANA (analog voltage proportional to VIN) 00001 = VREGREF (reference voltage for VREG output) 00010 = OV_REF (reference for overvoltage comparator) 00011 = UV_REF (reference for undervoltage comparator) 00100 = VBGR (band gap reference) 00101 = INT_VREG (internal version of the VREG load voltage) 00110 = CRT (voltage proportional to the current in the inductor) 00111 = VZC (an internal ground, Voltage for Zero Current) 01000 = DEMAND (input to current loop, output of demand mux) 01001 = RELEFF (analog voltage proportional to duty cycle) 01010 = TMP_ANA (analog voltage proportional to temperature) 01011 = ANA_IN (demanded current from the remote master) 01100 = DCI (dc inductor valley current) 01101 = Unimplemented 01110 = Unimplemented 01111 = Unimplemented 10000 = GPA0 (i.e. ADDR1) 10001 = GPA1 (i.e. ADDR0) 10010 = GPA2 (i.e. Temperature Sensor Input) 10011 = GPA3 (i.e. Tracking Voltage) 10100 = GPB1 10101 = GPB2 10110 = GPB4 10111 = GPB5 11000 = Unimplemented 11001 = Unimplemented 11011 = Unimplemented 11100 = Unimplemented 11101 = Unimplemented 11110 = Unimplemented 11111 = Unimplemented bit 1 GO/DONE: A/D Conversion Status bit 1 = A/D conversion cycle in progress. Setting this bit starts an A/D conversion cycle. This bit is automatically cleared by hardware when the A/D conversion has completed. 0 = A/D conversion completed/not in progress bit 0 ADON: ADC Enable bit 1 = ADC is enabled 0 = ADC is disabled and consumes no operating current |
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