SX1231-31SKB915 Semtech, SX1231-31SKB915 Datasheet - Page 44
SX1231-31SKB915
Manufacturer Part Number
SX1231-31SKB915
Description
TVS
Manufacturer
Semtech
Specifications of SX1231-31SKB915
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Note
5.2.2.4. FIFO Clearing
Table below summarizes the status of the FIFO when switching between different modes
Table 18 Status of FIFO when Switching Between Different Modes of the Chip
5.2.3. Sync Word Recognition
5.2.3.1. Overview
Sync word recognition (also called Pattern recognition) is activated by setting SyncOn in RegSyncConfig. The bit
synchronizer must also be activated in continuous mode (automatically done in Packet mode) .
The block behaves like a shift register; it continuously compares the incoming data with its internally programmed Sync
word and sets SyncAddressMatch when a match is detected. This is illustrated in Figure 26 below.
Rev 3 - April 2010
ADVANCED COMMUNICATIONS & SENSING
Stdby/Sleep
Stdby/Sleep
Stdby
Sleep
From
- FifoLevel interrupt is updated only after a read or write operation on the FIFO. Thus the interrupt cannot be
dynamically updated by only changing the FifoThreshold parameter
- FifoLevel interrupt is valid as long as FifoFull does not occur. An empty FIFO will restore its normal operation
Rx
Rx
Tx
Stdby/Sleep
FifoLevel
Sleep
Stdby
Any
To
Tx
Rx
Tx
1
0
FIFO status
Not cleared
Not cleared
Not cleared
Not cleared
Figure 25. FifoLevel IRQ Source Behavior
Cleared
Cleared
Cleared
Page 44
To allow the user to read FIFO in Stdby/Sleep mode after Rx
To allow the user to write the FIFO in Stdby/Sleep before Tx
B
B+1
Comments
# of bytes in FIFO
DATASHEET
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