SX1232
WIRELESS & SENSING
DATASHEET
Name
(Address)
Default
value
Bits
Mode
Variable Name
Description
Services registers
RegImageCal
(0x3b)
7
AutoImageCalOn
rw
0x00 Controls the Image calibration mechanism
*
0 Æ Calibration of the receiver depending on the temperature
is disabled
1 Æ Calibration of the receiver depending on the temperature
enabled.
6
5
ImageCalStart
wt
r
-
Triggers the IQ and RSSI calibration when set in Standby
mode.
ImageCalRunning
0x00 Set to 1 while the Image and RSSI calibration are running.
Toggles back to 0 when the process is completed
4
3
unused
r
r
-
unused
TempChange
0x00 IRQ flag witnessing a temperature change exceeding
TempThreshold since the last Image and RSSI calibration:
0 Æ Temperature change lower than TempThreshold
1 Æ Temperature change greater than TempThreshold
2-1
TempThreshold
rw
0x01 Temperature change threshold to trigger a new I/Q calibration
00 Æ 5 °C
01 Æ 10 °C
10 Æ 15 °C
11 Æ 20 °C
0
TempMonitorOff
TempValue
rw
r
0x00 Controls the temperature monitor operation:
0 Æ Temperature monitoring done in all modes except Sleep
and Standby
1 Æ Temperature monitoring stopped.
RegTemp
(0x3c)
7-0
-
Measured temperature
-1°C per Lsb
Needs calibration for absolute accuracy
RegLowBat
(0x3d)
7-4
3
unused
r
-
unused
LowBatOn
rw
0x00
Low Battery detector enable signal
0 Æ LowBat detector disabled
1 Æ LowBat detector enabled
2-0
LowBatTrim
rw
0x02
Trimming of the LowBat threshold:
000 Æ 1.695 V
001 Æ 1.764 V
010 Æ 1.835 V (d)
011 Æ 1.905 V
100 Æ 1.976 V
101 Æ 2.045 V
110 Æ 2.116 V
111 Æ 2.185 V
Status registers
Rev 3 - August 2012
Page 77
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SEMTECH [ SEMTECH CORPORATION ]
