OPTION_REG datasheet(57/222 Pages) MICROCHIP

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 2013 Microchip Technology Inc.

DS22331A-page 57

MCP19111

9.0

DEVICE CALIBRATION

Read-only memory locations 2080h through 208Fh

contain factory calibration data. Refer to Section 18.0

“Flash Program Memory Control” for information on

how to read from these memory locations.

9.1

Calibration Word 1

The DOV<3:0> bits at memory location 2080h set the

offset calibration for the output voltage remote sense

differential amplifier. Firmware must read these values

and write them to the DOVCAL register for proper

calibration.

The FCAL<6:0> bits at memory location 2080h set the

internal oscillator calibration. Firmware must read

these values and write them to the OSCCAL register

for proper calibration.

CALWD1: CALIBRATION WORD 1 REGISTER

U-0

R/P-1

—

DOV3

DOV2

DOV1

DOV0

bit 13

bit 8

U-0

R/P-1

—

FCAL6

FCAL5

FCAL4

FCAL3

FCAL2

FCAL1

FCAL0

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

DOV<3:0>: Output voltage remote sense differential amplifier offset calibration bits.

bit 7

Unimplemented: Read as ‘0’

bit 6-0

FCAL<6:0>: Internal oscillator calibration bits.

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