SX1276 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SX1276' PDF : 132 Pages View PDF
WIRELESS, SENSING & TIMING
SX1276/77/78/79
DATASHEET
Name
(Address)
Bits
Variable Name
7
RxTimeout
Mode Reset
LoRaTM Description
rc 0x00 Timeout interrupt: writing a 1 clears the IRQ
6
RxDone
rc 0x00 Packet reception complete interrupt: writing a 1 clears the IRQ
5
PayloadCrcError
rc 0x00 Payload CRC error interrupt: writing a 1 clears the IRQ
RegIrqFlags
(0x12)
4
ValidHeader
3
TxDone
2
CadDone
rc 0x00 Valid header received in Rx: writing a 1 clears the IRQ
rc
0x00
FIFO Payload transmission complete interrupt: writing a 1 clears
the IRQ
rc 0x00 CAD complete: write to clear: writing a 1 clears the IRQ
1
FhssChangeChannel
rc
0x00 FHSS change channel interrupt: writing a 1 clears the IRQ
0
CadDetected
rc
RegRxNbBytes
7-0
(0x13)
RegRxHeaderCnt
ValueMsb
7-0
(0x14)
RegRxHeaderCnt
ValueLsb
7-0
(0x15)
RegRxPacketCntV
alueMsb
7-0
(0x16)
RegRxPacketCntV
alueLsb
7-0
(0x17)
7-5
4
RegModemStat
3
(0x18)
2
1
0
FifoRxBytesNb
r
ValidHeaderCntMsb(15:
8)
r
ValidHeaderCntLsb(7:0) r
ValidPacketCntMsb(15:
8)
rc
ValidPacketCntLsb(7:0) r
RxCodingRate
r
r
r
ModemStatus
r
r
r
RegPktSnrValue
(0x19)
7-0 PacketSnr
r
0x00
n/a
Valid Lora signal detected during CAD operation: writing a 1
clears the IRQ
Number of payload bytes of latest packet received
Number of valid headers received since last transition into Rx
n/a mode, MSB(15:8). Header and packet counters are reseted in
Sleep mode.
Number of valid headers received since last transition into Rx
n/a mode, LSB(7:0). Header and packet counters are reseted in
Sleep mode.
Number of valid packets received since last transition into Rx
n/a mode, MSB(15:8). Header and packet counters are reseted in
Sleep mode.
Number of valid packets received since last transition into Rx
n/a mode, LSB(7:0). Header and packet counters are reseted in
Sleep mode.
n/a Coding rate of last header received
‘1’ Modem clear
‘0’ Header info valid
‘0’ RX on-going
‘0’ Signal synchronized
‘0’ Signal detected
Estimation of SNR on last packet received.In two’s compliment
format mutiplied by 4.
n/a
SNR[dB] = -P----a----c---k---e----t--S----n----r--[---t--w-----o4---s-----c---o---m-----p----l-e---m-----e----n---t--]
Rev. 4 - March 2015
©2015 Semtech Corporation
Page 111
www.semtech.com
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