题目内容:
A.if clk’event and clk = ‘1’ thenB.if falling_edge(clk) then
C.if clk’event and clk = ‘0’ then
D.if clk’stable and not clk = ‘1’ then
参考答案:
B.if falling_edge(clk) then
C.if clk’event and clk = ‘0’ then
D.if clk’stable and not clk = ‘1’ then