RFM23 Datasheet, PDF (124/152 Pages) –

RFM23
Register 56h. Modem Test
Bit
Name
Type
D7
bcrfbyp
R/w
D6
slicfbyp
R/w
D5
dttype
R/w
D4
oscdeten
R/w
D3
ookth
R/w
D2
refclksel
R/w
D1
refclkinv
R/w
D0
distogg
R/w
Reset value = 00000000
Bit
Name
7
bcrfbyp
6
slicfbyp
5
dttype
4
oscdeten
3
ookth
2
refclksel
1
refclkinv
0
distogg
Function
If set, BCR phase compensation will be bypassed.
If set, slicer phase compensation will be bypassed.
Dithering Type.
If low and dither enabled, we add +1/0, otherwise if high and dithering enabled,
we add ±1.
If low, the ADC Oscillation Detection mechanism is allowed to work. If set, we
disable the function.
If set, in OOK mode, the slicer threshold will be estimated by 8 bits of preamble.
By default, this bit is low and the demod estimate the threshold after 4 bits.
Delta-Sigma Reference Clock Source Selection
1: 10 MHz
0: PLL
Delta-Sigma Reference Clock Inversion Enable.
If reset, the discriminator toggling is disabled.
Register 57h. Charge Pump Test
Bit
Name
Type
D7
pfdrst
R/w
D6
fbdiv_rst
R/w
D5
cpforceup
R/w
D4
cpforcedn
R/w
D3
cdonly
R/w
D2
D1
D0
cdcurr[2:0]
R/w
Reset value = 00000000
Bit
Name
7
pfdrst
6
fbdiv_rst
5
cpforceup
4
cpforcedn
3
cdonly
2:0
cdcurr[2:0]
Function
Direct Control to Analog.
Direct Control to Analog.
Charge Pump Force Up.
Charge Pump Force Down.
Charge Pump DC Offset Only.
Charge Pump DC Current Selection.
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