MCP3464 datasheet(83/108 Pages) MICROCHIP

83 / 108 page

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DS20006180D-page 83

MCP3461/2/4

8.2

CONFIG0 Register

Name

Bits

Address

Cof

CONFIG0

0x1

R/W

CONFIG0: CONFIGURATION REGISTER 0

R/W-1

R/W-0

CONFIG0[7:6]

CLK_SEL[1:0]

CS_SEL[1:0]

ADC_MODE[1:0]

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 7-6

CONFIG0[7:6]: Full Shutdown Mode Enable

These bits are writable but have no effect except that they force Full Shutdown mode when they are

set to ‘00’ and when all other CONFIG0 bits are set to ‘0’.

bit 5-4

CLK_SEL[1:0]: Clock Selection

11 = Internal clock is selected and AMCLK is present on the analog master clock output pin

10 = Internal clock is selected and no clock output is present on the CLK pin

01 = External digital clock

00 = External digital clock (default)

bit 3-2

CS_SEL[1:0]: Current Source/Sink Selection Bits for Sensor Bias (source on VIN+/Sink on VIN-)

11 = 15 µA is applied to the ADC inputs

10 = 3.7 µA is applied to the ADC inputs

01 = 0.9 µA is applied to the ADC inputs

00 = No current source is applied to the ADC inputs (default)

bit 1-0

ADC_MODE[1:0]: ADC Operating Mode Selection

11 = ADC Conversion mode

10 = ADC Standby mode

01 = ADC Shutdown mode

00 = ADC Shutdown mode (default)

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