SI7015-A20 Datasheet, PDF (26/39 Pages) Silicon Laboratories – DIGITAL IC HUMIDITY AND TEMPERATURE SENSOR

Si7015-A20
6. Control Registers
Table 20 contains a summary of the Si7015 register set. Each register is described in more detail below.
Table 20. Si7015 Register Summary
Register
Name
Bit 7
Bit 6
Bit 5
Bit 4
I²C Register Summary
Bit 3
Bit 2
Bit 1
Bit 0
0x00
STATUS
RSVD RSVD RSVD RSVD RSVD RSVD RSVD /RDY
0x01
DATAh
Relative Humidity or Temperature, High Byte
0x02
DATAl
Relative Humidity or Temperature, Low Byte
0x03
CONFIG
RSVD RSVD FAST TEMP RSVD RSVD HEAT START
0x11
ID
ID3
ID2
ID1
ID0
0
0
0
0
0x84 0xB8 FWREV
MAJREV
MINREV
Notes:
1. Any register address not listed here is reserved and must not be written.
2. Reserved register bits (RSVD) must always be written as zero; the result of a read operation on these bits is undefined.
6.1. Register Detail
Register 0. STATUS
Bit
D7
D6
D5
D4
D3
D2
Name
Type
Reset Settings = 0000_0001
Bit
Name
Function
7:1 Reserved Reserved. Reads undefined.
0
/RDY Ready.
0 = conversion complete; results available in DATAh:DATAl.
1 = conversion in progress.
D1
D0
/RDY
R
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Rev. 1.0