Help: ICE_FLAGS_OPORT=PORT

This specifies a non-default output routing for a CORE or TUNER port

This specifies a non-default output routing for a CORE or TUNER port.  Normally, 
the output for a CORE or TUNER is the HOST for acquisitions or the I/O module 
on the same side of the card for playback.  This flag can be used to specify 
an alternate output port.  For example:

  sourcepic/port=tbank3 nafile _na MBT1X dec freq /flags=(OPORT=CORE1)

causes TBANK3 to route its output to CORE1 instead of going to the host.
And,

  sourcepic/port=tbank3 nafile _na MBT1X dec freq /flags=(OPORT=THRUCORE1)

causes TBANK3 to route its output through CORE1 before going to the host.