SX1233 データシートの表示（PDF） - Semtech Corporation
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SX1233 Datasheet PDF : 81 Pages
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SX1233
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
6.6. Packet Engine Registers
Table 26 Packet Engine Registers
Name
(Address)
RegPreambleMsb
(0x2c)
RegPreambleLsb
(0x2d)
RegSyncConfig
(0x2e)
Bits Variable Name
7-0 PreambleSize(15:8)
7-0 PreambleSize(7:0)
7 SyncOn
6 FifoFillCondition
RegSyncValue1
(0x2f)
RegSyncValue2
(0x30)
RegSyncValue3
(0x31)
RegSyncValue4
(0x32)
RegSyncValue5
(0x33)
RegSyncValue6
(0x34)
RegSyncValue7
(0x35)
RegSyncValue8
(0x36)
5-3 SyncSize
2-0 SyncTol
7-0 SyncValue(63:56)
7-0 SyncValue(55:48)
7-0 SyncValue(47:40)
7-0 SyncValue(39:32)
7-0 SyncValue(31:24)
7-0 SyncValue(23:16)
7-0 SyncValue(15:8)
7-0 SyncValue(7:0)
Mode
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
Default
Value
Description
0x00 Size of the preamble to be sent (from TxStartCondition
fulfilled). (MSB byte)
0x03 Size of the preamble to be sent (from TxStartCondition
fulfilled). (LSB byte)
1
0
011
000
0x01
*
0x01
*
0x01
*
0x01
*
0x01
*
0x01
*
0x01
*
0x01
*
Enables the Sync word generation and detection:
0 Æ Off
1 Æ On
FIFO filling condition:
0 Æ if SyncAddress interrupt occurs
1 Æ as long as FifoFillCondition is set
Size of the Sync word:
(SyncSize + 1) bytes
Number of tolerated bit errors in Sync word
1st byte of Sync word. (MSB byte)
Used if SyncOn is set.
2nd byte of Sync word
Used if SyncOn is set and (SyncSize +1) >= 2.
3rd byte of Sync word.
Used if SyncOn is set and (SyncSize +1) >= 3.
4th byte of Sync word.
Used if SyncOn is set and (SyncSize +1) >= 4.
5th byte of Sync word.
Used if SyncOn is set and (SyncSize +1) >= 5.
6th byte of Sync word.
Used if SyncOn is set and (SyncSize +1) >= 6.
7th byte of Sync word.
Used if SyncOn is set and (SyncSize +1) >= 7.
8th byte of Sync word.
Used if SyncOn is set and (SyncSize +1) = 8.
Rev 3.April 2010
Page 71
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