RFM22
Register 12h. Temperature Sensor Calibration
Bit
D7
tsrange[1:0]
R/w
D6
D5
entsoffs
R/w
D4
entstrim
R/w
D3
D2
D1
D0
tstrim[3:0]
R/w
Name
Type
Reset value = 00100000
Bit
Name
Function
tsrange[1:0]
Temperature Sensor Range Selection.
(FS range is 0..1024 mV)
00:
–40℃ .. 64℃ (full operating range), with 0.5℃ resolution (1 LSB in
the 8-bit ADC)
7：6
01:
11:
10:
–40℃… 85℃, with 1℃ resolution (1 LSB in the 8-bit ADC)
0 ℃ … 85℃, with 0.5℃ resolution (1 LSB in the 8-bit ADC)
o
–40 F … 216℉, with 1℉ resolution (1 LSB in the 8-bit ADC)
5
4
entsoffs
entstrim
Temperature Sensor Offset to Convert from K to ºC.
Temperature Sensor Trim Enable.
3：0
tstrim[3:0]
Temperature Sensor Trim Value.
Register 13h. Temperature Value Offset
Bit
D7
D6
D5
D4
D3
D2
D1
D0
tvoffs[7:0]
R/W
Name
Type
Reset value = 00000000
Bit
Name
Function
Temperature Value Offset.
This value is added to the measured temperature value. (MSB, tvoffs[8]: sign bit)
7：0
tvoffs[7:0]
91
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