Data Sheet

Page 97
RFM95/96/97/98
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WIRELESS & SENSING PRELIMINARY DATASHEET
Name
(Address)
Bits
Variable Name
Mode
Default
value
FSK/OOK Description
Service registers
7 AutoImageCalOn rw
0x00
*
Controls the Image calibration mechanism
0  Calibration of the receiver depending on the temperature is
disabled
1  Calibration of the receiver depending on the temperature
enabled.
6 ImageCalStart wt - Triggers the IQ and RSSI calibration when set in Standby mode.
5 ImageCalRunning r 0x00
Set to 1 while the Image and RSSI calibration are running.
Togg le s ba c k t o 0 wh en the p r o c e s s i s c o m p l e t ed
4 unused r - unused
3 Tem p C h a n g e r 0x00
IRQ flag witnessing a temperature change exceeding
Tem p T hr e s h o l d s i n c e t h e l a s t I m a ge a n d R SSI calibration:
0  Tem p e rature ch an g e lower th a n Te m p T h re s hold
1  Temperature change greater than TempThreshold
2-1 Temp T hre s h o l d rw 0x01
Tem perat ur e c hange thre shol d to t ri gger a ne w I/Q cali b r ation
00  5 °C
01  10 °C
10  15 °C
11  20 °C
RegImageCal
(0x3b)
0 Tem p M o n i to r O ff rw 0x00
Controls the temperature monitor operation:
0  Temperatu re monito r i n g d o n e i n all modes exc ep t S l e e p a n d
Standby
1  Temperature monitoring stopped.
RegTemp
(0x3c)
7-0 Temp Va l u e r -
Measured temperature
-1°C per Lsb
Needs calibration for absolute accuracy
7-4 unused r - unused
3 LowBatOn rw 0x00
Low Battery detector enable signal
0  LowBat detector disabled
1  LowBat detector enabled
RegLowBat
(0x3d)
2-0 LowBatTrim rw 0x02
Trimming of the LowBat threshold:
000  1.695 V
001  1.764 V
010  1.835 V (d)
011  1.905 V
100  1.976 V
101  2.045 V
110  2.116 V
111  2.185 V
Status registers