Datasheet

 2013 Microchip Technology Inc. DS22331A-page 61
MCP19111
9.5 Calibration Word 5
The DIFC<7:0> bits at memory location 2085h contain
the offset voltage information for the output voltage
difference amplifier. The value is an 8-bit two’s
complement number that represents the number of the
OVCCON counts needed to adjust for the differential
amplifier offset. This value can be used to completely
remove the differential amplifier offset.
For example, the offset of the differential amplifier is
measured to be -64 mV. Since one OVCCON count
equals 16 mV, this represents 4 counts of the
OVCCON register. Therefore, the value stored at
location 2085h would be 0x84h, where the setting of
the DIFC7 bit represents a negative number.
REGISTER 9-5: CALWD5: CALIBRATION WORD 5 REGISTER
U-0 U-0 U-0 U-0 U-0 U-0
— — — — — —
bit 13 bit 8
R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1
DIFC7 DIFC6 DIFC5 DIFC4 DIFC3 DIFC2 DIFC1 DIFC0
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 13-8 Unimplemented: Read as ‘0’
bit 7-0 DIFC<7:0>: OVCCON counts to adjust for differential amplifier offset calibration bits