Help: ICE_FLAGS_POVSR

Use Post OVSR input rate as the basis for decimation and frequency parameters.


Use Post OVSR input rate as the basis for decimation and frequency parameters.

Normally, the libraries use the OVSR factor to relax the lower decimation
limit of the chip but keep the user interface in terms of the Pre-OVSR input.
The libraries internally adjust the actual tuned frequency, decimation, and 
gain used by the tuner chip.  

If the post-OVSR rate is used as the defined input rate to the tuner, the 
integer decimation values supported by the tuner chips can effect a fractional 
decimation with respect to the pre-OVSR sample rate.  When applying the POVSR
flag, the SOURCEPIC primitive or PIC_IOPORT and other library calls should be 
told the Post-OVSR sample rate and treat it like a normal tuner operating on 
the oversampled input signal.  The gain adjustment is still handled internally,
but rates and frequencies are with respect to the oversampled input.