SX1232
WIRELESS & SENSING
DATASHEET
6.2. Register Map
Convention: r: read, w: write, t:trigger, c: clear
Table 31 Register Map
Name
(Address)
Default
value
Bits
Mode
Variable Name
Description
RegFifo
(0x00)
7-0
Fifo
rw
0x00 FIFO data input/output
Resisters for Common settings
RegOpMode
(0x01)
7
unused
r
0x00 unused
6-5
ModulationType
rw
0x00 Modulation scheme:
00 Æ FSK
01 Æ OOK
10 -11 Æ reserved
4-3
ModulationShaping
rw
0x00 Data shaping:
In FSK:
00 Æ no shaping
01 Æ gaussian filter BT = 1.0
10 Æ gaussian filter BT = 0.5
11 Æ gaussian filter BT = 0.3
In OOK:
00 Æ no shaping
01 Æ filtering with f
10 Æ filtering with f
11 Æ reserved
= bit_rate
cutoff
cutoff
= 2*bit_rate (for bit_rate < 125 kb/s)
2-0
Mode
rw
0x01 Transceiver modes
000 Æ Sleep mode
001 Æ Stdby mode
010 Æ FS mode TX (FSTx)
011 Æ Transmitter mode (Tx)
100 Æ FS mode RX (FSRx)
101 Æ Receiver mode (Rx)
110 Æ reserved
111 Æ reserved
RegBitrateMsb
(0x02)
7-0
7-0
BitRate(15:8)
BitRate(7:0)
rw
rw
0x1a MSB of Bit Rate (chip rate if Manchester encoding is enabled)
RegBitrateLsb
(0x03)
0x0b LSB of bit rate (chip rate if Manchester encoding is enabled)
FXOSC
------------------------------------------------------------------------
BitRate =
BitrateFrac
-------------------------------
BitRate(15,0) +
16
Default value: 4.8 kb/s
0x00 unused
RegFdevMsb
(0x04)
7-6
5-0
7-0
unused
Fdev(13:8)
Fdev(7:0)
r
rw
rw
0x00 MSB of the frequency deviation
RegFdevLsb
(0x05)
0x52 LSB of the frequency deviation
Fdev = Fstep × Fdev(15,0)
Default value: 5 kHz
Page 67
Rev 3 - August 2012
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