2.2 Data-flow graph 966 y(n)=ay(n-1)+x(n) (2) Inter-iteration A D x(n) y(n).1 M Intra-iteration (4) Intra-iteration and inter-iteration The precedence constraint is an intra-iteration precedence constraint if the edge has zero delays. The precedence constraint is an inter-iteration precedence constraint if the edge has one or more delays. 2021年2月 32021年2月 3 2.2 Data-flow graph y(n)  ay(n 1)  x(n) X + x(n) y(n) a Z-1 A M D 1 (4) (2)  Intra-iteration and inter-iteration  The precedence constraint is an intra-iteration precedence constraint if the edge has zero delays.  The precedence constraint is an inter-iteration precedence constraint if the edge has one or more delays. Intra-iteration Inter-iteration