hw za cal dvig & sodijo omejitev v setup / imajo čas cell_l

[muthamil]

Živjo
I ob dvoma pri izračunu rise_constraint in fall_constraint znotraj setup / časa držite v lookup tabelo.

<img src="images/smiles/icon_idea.gif" alt="Idea" border="0" />primer:

predvžig () (;

timing_type: hold_falling;
(constraint_table){

rise_constraint
(constraint_table) (
vrednosti ( "292.97,410.16,97.656", \
"605.47,722.66,136.72", \
"1543,1660.2,292.97")(constraint_table){

fall_constraint
(constraint_table) (
vrednosti ( "410.16,527.34,136.72", \
"722.66,839.84,97.656", \
"1660.2,1777.3,332.03")
related_pin: "CK";
)
predvžig () (;

timing_type: setup_falling;
(constraint_table){

rise_constraint
(constraint_table) (
vrednosti ( "292.97,371.09,839.84", \
"332.03,410.16,800.78", \
"332.03,410.16,800.78")(constraint_table){

fall_constraint
(constraint_table) (
vrednosti ( "410.16,292.97,175.78", \
"332.03,214.84,644.53", \
"488.28,371.09,0")
related_pin: "CK";
)

lahko eno nakazujejo, kako se jih izračuna s pomočjo vala za D flipflop

Hvala & Regds
Muthamil

<img src="images/smiles/icon_neutral.gif" alt="Nevtralno" border="0" />