SI7013-A20 Datasheet, PDF (35/45 Pages) Silicon Laboratories – IC HUMIDITY AND TWO-ZONE TEMPERATURE SENSOR

Si7013-A20
Register 2. User Register 2
Bit
Name
Type
D7
RSVD
D6
NO_HOLD
R/W
R/W
D5
THERM
_CORR
R/W
D4
CONV_
TIME
R/W
D3
RSVD
D2
D1
VIN_BUF VREFP
D0
VOUT
R/W
R/W
R/W
R/W
Reset Settings = 0000_100x
Bit
Name
Function
D7
RSVD
Reserved
D6
NO_HOLD
1: Auxiliary voltage and thermistor measurements made in No Hold
Master Mode. Note that this bit must be set to "0" before initiating an
internal temperature or humidity measurement.
0: Auxiliary voltage and thermistor measurements made in Hold Master
Mode.
D5
THERM_CORR 1: Thermistor correction enabled for auxiliary voltage and thermistor
measurements. Note that this bit must be set to "0" before initiating an
internal temperature or humidity measurement.
0: Thermistor correction disabled.
D4
CONV_TIME
Conversion Time. Selects conversion time and noise floor of the
voltage ADC.
0: Normal mode
1: Fast mode
D3
RSVD
Reserved
D2
VIN_BUF
0: VINN and VINP inputs are unbuffered
1: VINN and VINP inputs are buffered
D1
VREFP
0: A/D reference source is internal 1.25V
1: A/D reference source is VDDA
D0
VOUT*
0: VOUT pin is set to GNDD
1: VOUT pin is set to VDDD
Note: Default is powerup state of VOUT pin
*Note: VOUT is generally used for driving an external thermistor interface. Default setting is the same as the power up
setting.
Rev. 1.1
35