Datasheet

 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.