RFM22
Register 1Ch. IF Filter Bandwidthl
Bit
D7
dwn3_bypass
R/W
D6
D5
D4
D3
D2
D1
D0
ndec_exp[2:0]
R/W
filset[3:0]
R/W
Name
Type
Reset value = 00000001
Bit
Name
Function
dwn3_bypass
Bypass Decimator by 3 (if set).
7
ndec_exp[2:0]
filset[3:0]
6:4
3:0
IF Filter Decimation Rates.
IF Filter Coefficient Sets.
Defaults are for Rb = 40 kbps and Fd = 20 kHz so Bw = 80 kHz.
Register 1Dh. Battery Voltage Level
Bit
D7
afcbd
R/W
D6
enafc
R/W
D5
afcgearh[2:0]
R/W
D4
D3
D2
afcgearl[2:0]
R/W
D1
D0
Name
Type
Reset value = 01000000
Bit
Name
Function
afcbd
If set, the tolerated AFC frequency error will be halved.
AFC Enable.
7
enafc
6
afcgearh[2:0]
afcgearl[2:0]
5:4
3:0
AFC High Gear Setting.
AFC Low Gear Setting.
95
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