RFM31 Datasheet, PDF (83/137 Pages) –

RFM31
Register 1Ch. Battery Voltage Level
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Name dwn3_bypass
ndec_exp[2:0]
filset[3:0]
Type
R/W
R/W
R/W
Reset value = 00000001
Bit
Name
Function
7
dwn3_bypass Bypass Decimator by 3 (if set).
6:4
ndec_exp[2:0] IF Filter Decimation Rates.
IF Filter Coefficient Sets.
3:0
filset[3:0]
Defaults are for Rb = 40 kbps and Fd = 20 kHz so Bw = 80 kHz.
Register 1Dh. Battery Voltage Level
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Name
afcbd
enafc
afcgearh[2:0]
afcgearl[2:0]
Type
R/W
R/W
R/W
R/W
Reset value = 01000000
Bit
Name
Function
7
afcbd
If set, the tolerated AFC frequency error will be halved.
6
enafc
AFC Enable.
5:4
afcgearh[2:0] AFC High Gear Setting.
3:0
afcgearl[2:0] AFC Low Gear Setting.
83
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