symbols and beats, quick clarification needed

there is no doubt that streaming interface with sgdma is faster.

in streaming interface, there are:

one beat per clock,

one or some symbols per beat,

one or some bits per symbol.

the bit width of data signal equals to bitpersym*symperbeat.

the bit width of empty signal, which assert when endofpkg is high to indicates how many useless symbols are there in the last beat of a package, equals to ceiling(log2(symperbeat)).