RFM22
Register 6Fh. TX Data Rate 0
Bit
D7
D6
D5
D4
D3
D2
D1
D0
txdr[7:0]
R/W
Name
Type
Reset value = 00001101
Bit
Name
Function
Data Rate Lower Byte.
See formula above. Defaults = 40 kbps.
txdr[7:0]
7:0
Register 70h. Modulation Mode Control 1
Bit
D7
D6
D5
txdtrtscale
R/W
D4
enphpwdn
R/W
D3
manppol
R/W
D2
enmaninv
R/W
D1
enmanch
R/W
D0
enwhite
R/W
Reserved
R
Name
Type
Reset value = 00001100
Bit
7:6
5
Name
Function
Reserved
txdtrtscale
Reserved.
This bit should be set for Data Rates below 30 kbps.
If set, the Packet Handler will be powered down when module is in low power
mode.
enphpwdn
4
Manchester Preamble Polarity (will transmit a series of 1 if set, or series of 0 if
reset).
manppol
3
This bit affects ONLY the transmitter side, not the receiver. This is valid ONLY if
Manchester Mode is enabled.
enmaninv
enmanch
enwhite
2
1
0
Manchester Data Inversion is Enabled if this bit is set.
Manchester Coding is Enabled if this bit is set.
Data Whitening is Enabled if this bit is set.
134
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