SX1232
WIRELESS & SENSING
DATASHEET
Name
(Address)
Default
value
Bits
Mode
Variable Name
Description
Packet Handling registers
RegPreambleMsb 7-0
(0x25)
PreambleSize(15:8)
PreambleSize(7:0)
AutoRestartRxMode
rw
rw
rw
0x00 Size of the preamble to be sent (from TxStartCondition
fulfilled). (MSB byte)
RegPreambleLsb 7-0
(0x26)
0x03 Size of the preamble to be sent (from TxStartCondition
fulfilled). (LSB byte)
RegSyncConfig
(0x27)
7-6
0x02 Controls the automatic restart of the receiver after the
reception of a valid packet (PayloadReady or CrcOk):
00 Æ Off
01 Æ On, without waiting for the PLL to re-lock
10 Æ On, wait for the PLL to lock (frequency changed)
11 Æ reserved
5
4
PreamblePolarity
SyncOn
rw
rw
0x00
0x01
Sets the polarity of the Preamble
0 Æ 0xAA (default)
1 Æ 0x55
Enables the Sync word generation and detection:
0 Æ Off
1 Æ On
3
FifoFillCondition
rw
0x00
0x03
FIFO filling condition:
0 Æ if SyncAddress interrupt occurs
1 Æ as long as FifoFillCondition is set
2-0
7-0
SyncSize
rw
rw
Size of the Sync word:
(SyncSize + 1) bytes, (SyncSize) bytes if ioHomeOn=1
1st byte of Sync word. (MSB byte)
Used if SyncOn is set.
RegSyncValue1
(0x28)
SyncValue(63:56)
0x01
*
2nd byte of Sync word
Used if SyncOn is set and (SyncSize +1) >= 2.
RegSyncValue2
(0x29)
7-0
7-0
7-0
7-0
7-0
7-0
7-0
SyncValue(55:48)
SyncValue(47:40)
SyncValue(39:32)
SyncValue(31:24)
SyncValue(23:16)
SyncValue(15:8)
SyncValue(7:0)
rw
rw
rw
rw
rw
rw
rw
0x01
*
3rd byte of Sync word.
Used if SyncOn is set and (SyncSize +1) >= 3.
RegSyncValue3
(0x2a)
0x01
*
4th byte of Sync word.
Used if SyncOn is set and (SyncSize +1) >= 4.
RegSyncValue4
(0x2b)
0x01
*
5th byte of Sync word.
Used if SyncOn is set and (SyncSize +1) >= 5.
RegSyncValue5
(0x2c)
0x01
*
6th byte of Sync word.
Used if SyncOn is set and (SyncSize +1) >= 6.
RegSyncValue6
(0x2d)
0x01
*
th byte of Sync word.
RegSyncValue7
(0x2e)
0x01
*
7
Used if SyncOn is set and (SyncSize +1) >= 7.
8th byte of Sync word.
Used if SyncOn is set and (SyncSize +1) = 8.
RegSyncValue8
(0x2f)
0x01
*
Rev 3 - August 2012
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