MCP19116 datasheet(59/246 Pages) MICROCHIP

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 2015-2020 Microchip Technology Inc.

DS20005479D-page 59

MCP19116/7

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

Calibration Word 1 is at memory location 2080h. The

DCSRFB<6:0> bits set the offset calibration for the

current

sense

differential

amplifier

(A2)

when

configured using the internal feedback resistor. A

calibration range of ±30 mV is provided with 20h and

00h being midscale (no offset). The MSB is polarity only.

Firmware must read these values and copy them into

the DCSCAL Special Function Register located in Bank

3 at 199h.

CALWD1: CALIBRATION WORD 1 REGISTER

U-0

—

bit 13

bit 8

U-0

R/P-1

—

DCSRFB6

DCSRFB5

DCSRFB4

DCSRFB3

DCSRFB2

DCSRFB1

DCSRFB0

bit 7

bit 0

Legend:

R = Readable bit

P = Programmable bit

U = Unused bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 13-7

Unimplemented: Read as ‘0’

bit 6-0

DCSRFB<6:0>: Input Differential Current Sense Calibration bits when configured using internal

feedback resistor

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