Data Sheet

Page 105
RFM95/96/97/98
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WIRELESS & SENSING PRELIMINARY DATASHEET
Name
(Address)
Bits
Variable Name
Mode
Reset
LoRa
TM
Description
RegIrqFlags
(0x12)
7
RxTimeout
rc
0x00
Timeout interrupt: a write operation clears IRQ
6
RxDone
rc
0x00
Packet reception complete interrupt: a write operation clears IRQ
5
PayloadCrcError
rc
0x00
Payload CRC error interrupt: a write operation clears IRQ
4
ValidHeader
rc
0x00
Valid header received in Rx: a write operation clears IRQ
3
TxDone
rc
0x00
FIFO Payload transmission complete interrupt: a write operation
clears IRQ
2
CadDone
rc
0x00
CAD complete: write to clear: a write operation clears IRQ
1
FhssChangeChannel
rc
0x00
FHSS change channel interrupt: a write operation clears IRQ
0
CadDetected
rc
0x00
Valid Lora signal detected during CAD operation: a write
operation clears IRQ
RegRxNbBytes
(0x13)
7-0
FifoRxBytesNb
r
n/a
Number of payload bytes of latest packet received
RegRxHeaderCnt
ValueMsb
(0x14)
7-0
ValidHeaderCntMsb(15:
8)
r
n/a
Number of valid headers received since last transition into Rx
mode, MSB(15:8). Header and packet counters are reseted in
Sleep mode.
RegRxHeaderCnt
ValueLsb
(0x15)
7-0
ValidHeaderCntLsb(7:0)
r
n/a
Number of valid headers received since last transition into Rx
mode, LSB(7:0). Header and packet counters are reseted in
Sleep mode.
RegRxPacketCntV
alueMsb
(0x16)
7-0
ValidPacketCntMsb(15:
8)
rc
n/a
Number of valid packets received since last transition into Rx
mode, MSB(15:8). Header and packet counters are reseted in
Sleep mode.
RegRxPacketCntV
alueLsb
(0x17)
7-0
ValidPacketCntLsb(7:0)
r
n/a
Number of valid packets received since last transition into Rx
mode, LSB(7:0). Header and packet counters are reseted in
Sleep mode.
RegModemStat
(0x18)
7-5
RxCodingRate
r
n/a
Coding rate of last header received
4
ModemStatus
r
„1‟
Modem clear
3
r
„0‟
Header info valid
2
r
„0‟
RX on-going
1
r
„0‟
Signal synchronized
0
r
„0‟
Signal detected
RegPktSnrValue
(0x19)
7-0
PacketSnr
r
n/a
Estimation of SNR on last packet received.In two‟s compliment
format mutiplied by 4.
SNR[dB ] =
P
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