Help: ICE_FLAGS_ITDEC

Allow independent tuner decimation for each channel on a GC4016.


Allow independent tuner decimation for each channel on a GC4016.
This is only appropriate for CPC=2 and CPC=4 configurations.
Do NOT use with CPC=1.  Currently the ITDEC mode reduces the
tuner output dynamic range from 96 to 84 dB.  The lower 4 bits
of each data word contain the channel number.  This also requires
sharc CPU cycles to demux the packets on PIC4/MBT4 cards.