SX1232
WIRELESS & SENSING
DATASHEET
Name
(Address)
Default
value
Bits
Mode
Variable Name
Description
RegOokPeak
(0x14)
7-6
5
reserved
rw
rw
0x00 reserved
BitSyncOn
0x01 Enables the Bit Synchronizer.
0 Æ Bit Sync disabled (not possible in Packet mode)
1 Æ Bit Sync enabled
4-3
2-0
OokThreshType
rw
rw
0x01 Selects the type of threshold in the OOK data slicer:
00 Æ fixed threshold
01 Æ peak mode (default)
10 Æ average mode
11 Æ reserved
OokPeakTheshStep
0x00
Size of each decrement of the RSSI threshold in the OOK
demodulator:
000 Æ 0.5 dB
010 Æ 1.5 dB
100 Æ 3.0 dB
110 Æ 5.0 dB
001 Æ 1.0 dB
011 Æ 2.0 dB
101 Æ 4.0 dB
111 Æ 6.0 dB
RegOokFix
(0x15)
7-0
7-5
OokFixedThreshold
OokPeakThreshDec
rw
rw
0x0C Fixed threshold for the Data Slicer in OOK mode
Floor threshold for the Data Slicer in OOK when Peak mode is
used
RegOokAvg
(0x16)
0x00
Period of decrement of the RSSI threshold in the OOK
demodulator:
000 Æ once per chip
010 Æ once every 4 chips
100 Æ twice in each chip
001 Æ once every 2 chips
011 Æ once every 8 chips
101 Æ 4 times in each chip
110 Æ 8 times in each chip 111 Æ 16 times in each chip
4
reserved
rw
rw
0x01 reserved
3-2
OokAverageOffset
0x00 Static offset added to the threshold in average mode in order
to reduce glitching activity (OOK only):
00 Æ 0.0 dB
01 Æ 2.0 dB
10 Æ 4.0 dB
11 Æ 6.0 dB
1-0
7-0
OokAverageThreshFilt
reserved
rw
rw
0x02
Filter coefficients in average mode of the OOK demodulator:
00 Æ f ≈ chip rate / 32.π 01 Æ f ≈ chip rate / 8.π
C
C
10 Æ f ≈ chip rate / 4.π
11 Æf ≈ chip rate / 2.π
C
C
RegRes17
to
RegRes19
0x47 reserved. Keep the Reset values.
0x32
0x3E
RegAfcFei
(0x1a)
7-5
4
unused
AgcStart
r
-
unused
wt
rw
-
0x00 Triggers an AGC sequence when set to 1.
0x00 reserved
3
reserved
2
unused
-
unused
1
AfcClear
wc
rw
0x00 Clear AFC register set in Rx mode. Always reads 0.
0
AfcAutoClearOn
0x00 Only valid if AfcAutoOn is set
0 Æ AFC register is not cleared at the beginning of the
automatic AFC phase
1 Æ AFC register is cleared at the beginning of the automatic
AFC phase
Rev 3 - August 2012
Page 71
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