RFM66W Datasheet, PDF (77/87 Pages) List of Unclassifed Manufacturers – 868 & 915MHz Ultra Low Power High Link Budget Integrated UHF Transceiver

WIRELESS & SENSING
RFM66W
DATASHEET
Name
(Address)
Bits
RegImageCal
7
(0x3b)
6
5
4
3
2-1
0
RegTemp
7-0
(0x3c)
RegLowBat
7-4
(0x3d)
3
2-0
Variable Name
AutoImageCalOn
ImageCalStart
ImageCalRunning
unused
TempChange
TempThreshold
TempMonitorOff
TempValue
unused
LowBatOn
LowBatTrim
Mode
Default
value
Description
rw 0x01 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.
wp - Triggers the IQ and RSSI calibration when set.
r 0x00 Set to 1 while the Image and RSSI calibration are running.
Toggles back to 0 when the process is completed
r
- unused
r 0x00 IRQ flag witnessing a temperature change exceeding
TempThreshold since the last Image and RSSI calibration:
0 → Temperature change lower than TempThreshold
1 → Temperature change greater than TempThreshold
rw 0x01 Temperature change threshold to trigger a new I/Q calibration
00 → 5 °C
01 → 10 °C
10 → 15 °C
11 → 20 °C
rw 0x00 Controls the temperature monitor operation:
0 → Temperature monitoring done in all modes except Sleep
and Standby
1 → Temperature monitoring stopped.
r
- Measured temperature
-1°C per Lsb
Needs calibration for absolute accuracy
r
- unused
rw 0x00 Low Battery detector enable signal
0 → LowBat detector disabled
1 → LowBat detector enabled
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
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