SX1276 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SX1276' PDF : 132 Pages View PDF
SX1276/77/78/79
WIRELESS, SENSING & TIMING
DATASHEET
6. Description of the Registers
The register mapping depends upon whether FSK/OOK or LoRaTM mode has been selected. The following table
summarises the location and function of each register and gives an overview of the changes in register mapping between
both modes of operation.
6.1. Register Table Summary
Table 41 Registers Summary
Address
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
Register Name
FSK/OOK Mode
LoRaTM Mode
RegFifo
RegOpMode
RegBitrateMsb
RegBitrateLsb
RegFdevMsb
Unused
RegFdevLsb
RegFrfMsb
RegFrfMid
RegFrfLsb
RegPaConfig
RegPaRamp
RegOcp
RegLna
RegRxConfig
RegFifoAddrPtr
RegRssiConfig
RegRssiCollision
RegFifoTxBa-
seAddr
RegFifoRxBa-
seAddr
RegRssiThresh
FifoRxCurren-
tAddr
RegRssiValue
RegRxBw
RegAfcBw
RegIrqFlagsMask
RegIrqFlags
RegRxNbBytes
RegOokPeak
RegRxHeaderCnt
ValueMsb
RegOokFix
RegRxHeaderCnt
ValueLsb
RegOokAvg
RegRxPacketCnt
ValueMsb
Reserved17
RegRxPacketCnt
ValueLsb
Reserved18
RegModemStat
Reserved19
RegAfcFei
RegPktSnrValue
RegPktRssiValue
Reset Default
(POR) (FSK)
0x00
0x01
0x1A
0x0B
0x00
0x52
0x6C
0x80
0x00
0x4F
0x09
0x2B
0x20
0x08
0x0E
0x02
Description
FSK Mode
LoRaTM Mode
FIFO read/write access
Operating mode & LoRaTM / FSK selection
Bit Rate setting, Most Significant Bits
Bit Rate setting, Least Significant Bits
Frequency Deviation setting, Most Significant Bits
Frequency Deviation setting, Least Significant Bits
RF Carrier Frequency, Most Significant Bits
RF Carrier Frequency, Intermediate Bits
RF Carrier Frequency, Least Significant Bits
PA selection and Output Power control
Control of PA ramp time, low phase noise PLL
Over Current Protection control
LNA settings
AFC, AGC, ctrl
FIFO SPI pointer
RSSI
Start Tx data
0x0A
0xFF
n/a
n/a
0x15
0x0B
0x28
0x0C
RSSI Collision detector
RSSI Threshold control
RSSI value in dBm
Channel Filter BW Control
AFC Channel Filter BW
OOK demodulator
Threshold of the OOK demod
Start Rx data
Start address of last
packet received
Optional IRQ flag mask
IRQ flags
Number of received bytes
Number of valid headers
received
0x12
0x47
0x32
0x3E
0x00
Average of the OOK demod
-
-
-
AFC and FEI control
Number of valid packets
received
Live LoRaTM modem
status
Espimation of last packet
SNR
RSSI of last packet
Rev. 4 - March 2015
©2015 Semtech Corporation
Page 90
www.semtech.com
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