Datasheet

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SX1272/73
WIRELESS, SENSING & TIMING DATASHEET
Rev. 2 - July 2014
©2014 Semtech Corporation
RegPacketConfig1
(0x30)
7 PacketFormat rw 0x01
Defines the packet format used:
0  Fixed length
1  Variable length
6-5 DcFree rw 0x00
Defines DC-free encoding/decoding performed:
00  None (Off)
01  Manchester
10  Whitening
11  reserved
4 CrcOn rw 0x01
Enables CRC calculation/check (Tx/Rx):
0  Off
1  On
3 CrcAutoClearOff rw 0x00
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 0x00
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 CrcWhiteningType rw 0x00
Selects the CRC and whitening algorithms:
0  CCITT CRC implementation with standard whitening
1
 IBM CRC implementation with alternate whitening
RegPacketConfig2
(0x31)
7 unused r - unused
6 DataMode rw 0x01
Data processing mode:
0  Continuous mode
1  Packet mode
5 IoHomeOn rw 0x00
Enables the io-homecontrol
®
compatibility mode
0  Disabled
1  Enabled
4 IoHomePowerFrame rw 0x00
reserved - Linked to io-homecontrol
®
compatibility mode
3 BeaconOn rw 0x00 Enables the Beacon mode in Fixed packet format
2-0 PayloadLength(10:8) rw 0x00 Packet Length Most significant bits
RegPayloadLength
(0x32)
7-0 PayloadLength(7:0) rw 0x40
If PacketFormat = 0 (fixed), payload length.
If PacketFormat = 1 (variable), max length in Rx, not used in Tx.
RegNodeAdrs
(0x33)
7-0 NodeAddress rw 0x00
Node address used in address filtering.
RegBroadcastAdrs
(0x34)
7-0 BroadcastAddress rw 0x00 Broadcast address used in address filtering.
Name
(Address)
Bits
Variable Name
Mode
Default
value
FSK/OOK Description