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SX1231
WIRELESS & SENSING PRODUCTS
6.2. Common Configuration Registers
Table 23 Common Configuration Registers
DATASHEET
Name
(Address)
Bits Variable Name
Mode
Default
Value
Description
RegFifo
7-0
Fifo
rw
0x00
FIFO data input/output
(0x00)
RegOpMode
(0x01)
7
SequencerOff
rw
0
Controls the automatic Sequencer (see section 4.2 ):
0 ? Operating mode as selected with Mode bits in
RegOpMode is automatically reached with the Sequencer
1 ? Mode is forced by the user
6
ListenOn
rw
0
Enables Listen mode, should be enabled whilst in
Standby mode:
0 ? Off (see section 4.3)
1 ? On
5
ListenAbort
w
0
Aborts Listen mode when set together with ListenOn=0
See section 4.3.4 for details
Always reads 0.
4-2
Mode
rw
001
Transceiver ’s operating modes:
000 ? Sleep mode (SLEEP)
001 ? Standby mode (STDBY)
010 ? Frequency Synthesizer mode (FS)
011 ? Transmitter mode (TX)
100 ? Receiver mode (RX)
others ? reserved
Reads the value corresponding to the current chip mode
1-0
-
r
00
unused
RegDataModul
(0x02)
7
6-5
-
DataMode
r
rw
0
00
unused
Data processing mode:
00 ? Packet mode
01 ? reserved
10 ? Continuous mode with bit synchronizer
11 ? Continuous mode without bit synchronizer
4-3
ModulationType
rw
00
Modulation scheme:
00 ? FSK
01 ? OOK
10 - 11 ? reserved
2
1-0
-
ModulationShaping
r
rw
0
00
unused
Data shaping:
in FSK:
00 ? no shaping
01 ? Gaussian filter, BT = 1.0
10 ? Gaussian filter, BT = 0.5
11 ? Gaussian filter, BT = 0.3
in OOK:
00 ? no shaping
01 ? filtering with f cutoff = BR
10 ? filtering with f cutoff = 2*BR
11 ? reserved
RegBitrateMsb
(0x03)
7-0
BitRate(15:8)
rw
0x1a
MSB of Bit Rate (Chip Rate when Manchester encoding is
enabled)
Rev. 7 - June 2013
Page 65
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