Data Sheet
LJ1269HC
Rev1.0 Page 70 Web: www.ljelect.com
RegPacketConfig1
(0x37)
7
PacketFormat
rw
0
Defines the packet format used:
0 → Fixed length
1 → Variable length
6-5
DcFree
rw
00
Defines DC-free encoding/decoding performed:
00 → None (Off)
01 → Manchester
10 → W hitening
11 → reserved
4
CrcOn
rw
1
Enables CRC calculation/check (Tx/Rx):
0 → Off
1 → On
3
CrcAutoClearOff
rw
0
Defines the behavior of the packet handler when CRC check fails:
0 → Clear FIFO and restart new packet reception. No
PayloadReady interrupt issued.
1 → Do not clear FIFO. PayloadReady interrupt issued.
2-1
AddressFiltering
rw
00
Defines address based filtering in Rx:
00 → None (Off)
01 → Address field must match NodeAddress
10 → Address field must match NodeAddress or
BroadcastAddress
11 → reserved
0
-
rw
0
unused
RegPayloadLength
(0x38)
7-0
PayloadLength
rw
0x40
If PacketFormat = 0 (fixed), payload length.
If PacketFormat = 1 (variable), max length in Rx, not used in Tx.
RegNodeAdrs
(0x39)
7-0
NodeAddress
rw
0x00
Node address used in address filtering.
RegBroadcastAdrs
(0x3A)
7-0
BroadcastAddre
ss
rw
0x00
Broadcast address used in address filtering.
RegAutoModes
(0x3B)
7-5
EnterCondition
rw
0x00
Interrupt condition for entering the intermediate mode:
000 → None (AutoModes Off)
001 → Rising edge of FifoNotEmpty
010 → Rising edge of FifoLevel
011 → Rising edge of CrcOk
100 → Rising edge of PayloadReady
101 → Rising edge of SyncAddress
110 → Rising edge of PacketSent
111 → Falling edge of FifoNotEmpty (i.e. FIFO empty)
4-2
ExitCondition
rw
0x00
Interrupt condition for exiting the intermediate mode:
000 → None (AutoModes Off)
001 → Falling edge of FifoNotEmpty (i.e. FIFO empty)
010 → Rising edge of FifoLevel or Timeout
011 → Rising edge of CrcOk or Timeout
100 → Rising edge of PayloadReady or Timeout
101 → Rising edge of SyncAddress or Timeout
110 → Rising edge of PacketSent
111 → Rising edge of Timeout
1-0
IntermediateMod
e
rw
00
Intermediate mode:
00 → Sleep mode (SLEEP)
01 → Standby mode (STDBY)
10 → Receiver mode (RX)
11 → Transmitter mode (TX)
Sub GHz FSK/OOK Transceiver Module DATASHEET