RFM23
Register 21h. Clock Recovery Offset 2
Bit
D7
D6
rxosr[10:8]
R/W
D5
D4
stallctrl
R/W
D3
D2
ncoff[19:16]
R/W
D1
D0
Name
Type
Reset value = 00000001
Bit
7:5
4
Name
Function
Oversampling Rate.
Upper bits.
rxosr[10:8]
stallctrl
Used for BCR Purposes.
NCO Offset.
ncoff[19:16]
3:0
See formula above.
The offset can be calculated as follows:
Rb×（1+enmanch）×220+ndec_exp
500×(1+2×dwn3_bypass)
ncoff =
The default values for register 20h to 23h gives 40 kbps RX_DR with Manchester coding is disenabled.
Register 22h. Clock Recovery Offset 1
Bit
D7
D6
D5
D4
D3
ncoff[15:8]
R/W
D2
D1
D0
Name
Type
Reset value =01000111
Bit
Name
Function
NCO Offset.
ncoff[15:8]
7:0
See formula above
99
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