Data Sheet

Page 93
RFM95/96/97/98(W)
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WIRELESS & SENSING PRELIMINARY DATASHEET
Name
(Address)
Bits
Variable Name
Mode
Default
value
FSK/OOK Description
7-4 unused r - unused
3 RcCalStart wt 0x00
Triggers the calibration of the RC oscillator when set. Always
reads 0. RC calibration must be triggered in Standby mode.
RegOsc
(0x24)
2-0 ClkOut rw
0x07
*
Selects CLKOUT frequency:
000 Æ FXOSC
001 Æ FXOSC / 2
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
RegPreambleMsb
(0x25)
7-0 PreambleSize(15:8) rw 0x00
Size of the preamble to be sent (from TxStartCondition fulfilled).
(MSB byte)
RegPreambleLsb
(0x26)
7-0 PreambleSize(7:0) rw 0x03
Size of the preamble to be sent (from TxStartCondition fulfilled).
(LSB byte)
7-6 AutoRestartRxMode rw 0x02
Controls the automatic restart of the receiver after the reception of
a valid packet (PayloadReady or CrcOk):
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
5 PreamblePolarity rw 0x00
Sets the polarity of the Preamble
0 Æ 0xAA (default)
1 Æ 0x55
4 SyncOn rw 0x01
Enables the Sync word generation and detection:
0 Æ Off
1 Æ On
3 FifoFillCondition rw 0x00
FIFO filling condition:
0 Æ if SyncAddress interrupt occurs
1 Æ as long as FifoFillCondition is set
RegSyncConfig
(0x27)
2-0 SyncSize rw 0x03
Size of the Sync word:
(SyncSize + 1) bytes, (SyncSize) bytes if ioHomeOn=1
RegSyncValue1
(0x28)
7-0 SyncValue(63:56)
rw
0x01
*
1
st
byte of Sync word. (MSB byte)
Used if SyncOn is set.
RegSyncValue2
(0x29)
7-0 SyncValue(55:48) rw
0x01
*
2
nd
byte of Sync word
Used if SyncOn is set and (SyncSize +1) >= 2.
RegSyncValue3
(0x2a)
7-0 SyncValue(47:40) rw
0x01
*
3
rd
byte of Sync word.
Used if SyncOn is set and (SyncSize +1) >= 3.
RegSyncValue4
(0x2b)
7-0 SyncValue(39:32) rw
0x01
*
4
th
byte of Sync word.
Used if SyncOn is set and (SyncSize +1) >= 4.