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RFM95 Datasheet(PDF) 99 Page - HOPE Microelectronics CO., Ltd.

Part No. RFM95
Description  Low Power Long Range Transceiver Module
Download  121 Pages
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Maker  HOPE [HOPE Microelectronics CO., Ltd.]
Homepage  https://www.hoperf.com/
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 99 page
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Page 99
RFM95/96/97/98(W)
Tel: + 86-755-82973805
Fax: + 86-755-82973550
E-mail: sales@hoperf.com http:/ / www.hoperf.com
WIRELESS & SENSING
PRELIMINARY
DATASHEET
Name
(Address)
Bits
Variable Name
Mode
Default
value
FSK/OOK Description
7-6
Dio0Mapping
rw
0x00
5-4
Dio1Mapping
rw
0x00
3-2
Dio2Mapping
rw
0x00
RegDioMapping1
(0x40)
1-0
Dio3Mapping
rw
0x00
7-6
Dio4Mapping
rw
0x00
5-4
Dio5Mapping
rw
0x00
Mapping of pins DIO0 to DIO5
See Table 23 for mapping in LoRa mode
See Table 27 for mapping in Continuous mode
See table 28 for mapping in Packet mode
3-1
reserved
rw
0x00
reserved. Retain default value
RegDioMapping2
(0x41)
0
MapPreambleDetect
rw
0x00
Allows the mapping of either Rssi Or PreambleDetect to the DIO
pins, as summarized on Table 27 and Table 28
0
Rssi
interrupt
1
PreambleDetect
interrupt
Version register
RegVersion
(0x42)
7-0
Version
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
7
FastHopOn
rw
0x00
Bypasses the main state machine for a quick frequency hop.
Writing RegFrfLsb will trigger the frequency change.
0
Frf is validated when FSTx or FSRx is requested
1
Frf is validated triggered when RegFrfLsb is written
RegPllHop
(0x44)
6-0
reserved
rw
0x2d
reserved
7-5
reserved
rw
0x00
reserved. Retain default value
4
TcxoInputOn
rw
0x00
Controls the crystal oscillator
0
Crystal Oscillator with external Crystal
1
External clipped sine TCXO AC-connected to XTA pin
RegTcxo
(0x4b)
3-0
reserved
rw
0x09
Reserved. Retain default value.
7-3
reserved
rw
0x10
reserved. Retain default value
RegPaDac
(0x4d)
2-0
PaDac
rw
0x04
Enables the +20dBm option on PA_BOOST pin
0x04
Default value
0x07
+20dBm on PA_BOOST when OutputPower=1111
RegFormerTemp
(0x5b)
7-0
FormerTemp
rw
-
Temperature saved during the latest IQ (RSSI and Image)
calibrated. Same format as TempValue in RegTemp.
7-4
unused
r
0x00
unused
RegBitrateFrac
(0x5d)
3-0
BitRateFrac
rw
0x00
Fractional part of the bit rate divider (Only valid for FSK)
If BitRateFrac> 0 then:
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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