RFM95 Datasheet, PDF (99/121 Pages) List of Unclassifed Manufacturers – Low Power Long Range Transceiver Module

WIRELESS & SENSING
RFM95/96/97/98(W)
PRELIMINARY
DATASHEET
Name
(Address)
Bits
7-6
RegDioMapping1 ^5-4
(0x40)
3-2
1-0
7-6
5-4
RegDioMapping2 ^3-1
(0x41)
0
RegVersion
(0x42)
7-0
RegPllHop
7
(0x44)
6-0
7-5
RegTcxo
(0x4b)
4
3-0
7-3
RegPaDac
(0x4d)
2-0
RegFormerTemp
(0x5b)
7-0
7-4
RegBitrateFrac
(0x5d)
3-0
Variable Name
Dio0Mapping
Dio1Mapping
Dio2Mapping
Dio3Mapping
Dio4Mapping
Dio5Mapping
reserved
MapPreambleDetect
Version
FastHopOn
reserved
reserved
TcxoInputOn
reserved
reserved
PaDac
FormerTemp
unused
BitRateFrac
Mode
Default
value
FSK/OOK Description
rw 0x00
rw 0x00
Mapping of pins DIO0 to DIO5
rw 0x00
rw 0x00 ^{See Table 23 for mapping in LoRa mode}
rw 0x00 _{See Table 27 for mapping in Continuous mode}
rw 0x00 ^{See table 28 for mapping in Packet mode}
rw 0x00 reserved. Retain default value
Allows the mapping of either Rssi Or PreambleDetect to the DIO
rw
0x00
pins, as summarized on Table 27 and Table 28
0 Æ Rssi interrupt
1 Æ PreambleDetect interrupt
Version register
r
0x11
Version code of the chip. Bits 7-4 give the full revision number;
bits 3-0 give the metal mask revision number.
Additional registers
Bypasses the main state machine for a quick frequency hop.
rw
0x00
Writing RegFrfLsb will trigger the frequency change.
0 Æ Frf is validated when FSTx or FSRx is requested
1 Æ Frf is validated triggered when RegFrfLsb is written
rw 0x2d reserved
rw 0x00 reserved. Retain default value
Controls the crystal oscillator
rw 0x00 0 Æ Crystal Oscillator with external Crystal
1 Æ External clipped sine TCXO AC-connected to XTA pin
rw 0x09 Reserved. Retain default value.
rw 0x10 reserved. Retain default value
Enables the +20dBm option on PA_BOOST pin
rw 0x04 0x04 Æ Default value
0x07 Æ +20dBm on PA_BOOST when OutputPower=1111
rw
-
Temperature saved during the latest IQ (RSSI and Image)
calibrated. Same format as TempValue in RegTemp.
r 0x00 unused
Fractional part of the bit rate divider (Only valid for FSK)
If BitRateFrac> 0 then:
rw 0x00
BitRate
=
---------------------------^F----^X----^O-----^S---^C-----------------------------
BitRate(15,0) + -^B----ⁱ--^t--^r--^a----^t--^e---^F----^r--^a----^c-
16
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