RFM95 Datasheet, PDF (93/121 Pages) List of Unclassifed Manufacturers – Low Power Long Range Transceiver Module

WIRELESS & SENSING
RFM95/96/97/98(W)
PRELIMINARY
DATASHEET
Name
(Address)
Bits
7-4
3
RegOsc
(0x24)
2-0
RegPreambleMsb
(0x25)
7-0
RegPreambleLsb
(0x26)
7-0
7-6
5
RegSyncConfig
(0x27)
4
3
2-0
RegSyncValue1
(0x28)
7-0
RegSyncValue2
(0x29)
7-0
RegSyncValue3
(0x2a)
7-0
RegSyncValue4
(0x2b)
7-0
Variable Name
unused
RcCalStart
ClkOut
PreambleSize(15:8)
PreambleSize(7:0)
AutoRestartRxMode
PreamblePolarity
SyncOn
FifoFillCondition
SyncSize
SyncValue(63:56)
SyncValue(55:48)
SyncValue(47:40)
SyncValue(39:32)
Mode
Default
value
FSK/OOK Description
r
- unused
wt
0x00
Triggers the calibration of the RC oscillator when set. Always
reads 0. RC calibration must be triggered in Standby mode.
Selects CLKOUT frequency:
000 Æ FXOSC
001 Æ FXOSC / 2
rw
0x07
*
010 Æ FXOSC / 4
011 Æ FXOSC / 8
100 Æ FXOSC / 16
101 Æ FXOSC / 32
110 Æ RC (automatically enabled)
111 Æ OFF
Packet Handling registers
rw
0x00
Size of the preamble to be sent (from TxStartCondition fulfilled).
(MSB byte)
rw
0x03
Size of the preamble to be sent (from TxStartCondition fulfilled).
(LSB byte)
Controls the automatic restart of the receiver after the reception of
a valid packet (PayloadReady or CrcOk):
rw
0x02
00 Æ Off
01 Æ On, without waiting for the PLL to re-lock
10 Æ On, wait for the PLL to lock (frequency changed)
11 Æ reserved
Sets the polarity of the Preamble
rw 0x00 _{0 Æ 0xAA (default)}
1 Æ 0x55
Enables the Sync word generation and detection:
rw 0x01 0 Æ Off
1 Æ On
FIFO filling condition:
rw 0x00 0 Æ if SyncAddress interrupt occurs
1 Æ as long as FifoFillCondition is set
rw
0x03
Size of the Sync word:
(SyncSize + 1) bytes, (SyncSize) bytes if ioHomeOn=1
rw
0x01 ₁^st _{byte of Sync word. (MSB byte)}
* _{Used if SyncOn is set.}
rw
0x01 ₂^nd _{byte of Sync word}
* _{Used if SyncOn is set and (SyncSize +1) >= 2.}
rw
0x01 ₃^rd _{byte of Sync word.}
* _{Used if SyncOn is set and (SyncSize +1) >= 3.}
rw
0x01 ₄^th _{byte of Sync word.}
* _{Used if SyncOn is set and (SyncSize +1) >= 4.}
Page 93
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