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OPTION_REG Folha de dados(PDF) 59 Page - Microchip Technology |
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OPTION_REG Folha de dados(HTML) 59 Page - Microchip Technology |
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59 / 222 page ![]() 2013 Microchip Technology Inc. DS22331A-page 59 MCP19111 9.3 Calibration Word 3 The VRO<3:0> bits at memory location 2083h calibrate the offset of the buffer amplifier of the output voltage regulation reference set point. This effectively changes the band gap reference. Firmware must read these values and write them to the VROCAL register for proper calibration. The ZRO<3:0> bits at memory location 2083h calibrate the offset of the error amplifier. Firmware must read these values and write them to the ZROCAL register for proper calibration. REGISTER 9-3: CALWD3: CALIBRATION WORD 3 REGISTER U-0 U-0 R/P-1 R/P-1 R/P-1 R/P-1 — — VRO3 VRO2 VRO1 VRO0 bit 13 bit 8 U-0 U-0 U-0 U-0 R/P-1 R/P-1 R/P-1 R/P-1 — — — — ZRO3 ZRO2 ZRO1 ZRO0 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 13-12 Unimplemented: Read as ‘0’ bit 11-8 VRO<3:0>: Reference voltage offset calibration bits. bit 7-4 Unimplemented: Read as ‘0’ bit 3-0 ZRO<3:0>: Error amplifier offset voltage calibration bits. |
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