MCP3911 datasheet(62/72 Pages) MICROCHIP

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MCP3911

DS22286A-page 62

7.9

VREFCAL Register – Internal

Voltage Reference Temperature

Coefficient Adjustment Register

This register is only for advanced users. This register

should not be written unless the user wants to calibrate

the temperature coefficient of the whole system or

application. The default value of this register is set to

0x42.

VREFCAL REGISTER

Name

Bits

Address

Cof

VREFCAL

0x1A

R/W

R/W-0

R/W-1

R/W-0

R/W-1

R/W-0

VREFCAL<7>

VREFCAL<6>

VREFCAL<5> VREFCAL<4> VREFCAL<3>

VREFCAL<2>

VREFCAL<1> VREFCAL<0>

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7:0

Internal Voltage Temperature coefficient register value. (See Section 5.7.3 “Temperature

compensation (VREFCAL register)” for complete description).

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