Si7015-A10
Rev. 1.0 25
5.2.3. Firmware Revision
The internal firmware revision can be read with the following I
2
C transaction:
The values in this field are encoded as follows:
0xFF = Firmware revision 1.0
SSlave
Address
W
A0x84A 0xB8 A S Slave
Address
R
A FWREV A NA P
Si7015-A10
26 Rev. 1.0
6. Control Registers
Table 20 contains a summary of the Si7015 register set. Each register is described in more detail below.
6.1. Register Detail
Reset Settings = 0000_0001
Table 20. Si7015 Register Summary
Register Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
I
2
C Register Summary
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.
Register 0. STATUS
BitD7D6D5D4D3D2D1D0
Name
/RDY
Type R
Bit Name Function
7:1 Reserved Reserved. Reads undefined.
0 /RDY Ready.
0 = conversion complete; results available in DATAh:DATAl.
1 = conversion in progress.
Si7015-A10
Rev. 1.0 27
Reset Settings = 0000_0000
Reset Settings = 0000_0000
Register 0x01. DATAh
BitD7D6D5D4D3D2D1D0
Name Relative Humidity or Temperature, High Byte
Type R
Bit Name Function
7:0 DATAh Data, High Byte.
Eight most significant bits of a temperature or humidity measurement. See Table 11 or
Table 13 for the measurement format.
Register 0x02. DATAI
BitD7D6D5D4D3D2D1D0
Name Relative Humidity or Temperature, Low Byte
Type Read
Bit Name Function
7:0 DATAl Data, Low Byte.
Eight least significant bits of a temperature or humidity measurement. See Table 11 or
Table 13 for the measurement format.

SI7015-A10-GMR

Mfr. #:
Manufacturer:
Silicon Labs
Description:
Board Mount Humidity Sensors Digital RH ( 4.5% max) & temperature sensor, commercial grade
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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