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Verilog 线型wire 种类
2022-07-02 03:02:00 【嗒曦】
1.Nets(网络连线):
由模块或门驱动的连线。驱动端信号的改变会立刻传递到输出的连线上。
例如:下图,selb的改变,会自动地立刻影响或门的输出。
连接(Nets)类型变量的种类:
类型 功能
wire,tri 对应于标准的互连线(缺省)
supply1, supply2 对应于电源线或接地线
wor, trior 对应于有多个驱动源的线或逻辑连接
wand, triand 对应于有多个驱动源的线与逻辑连接
trireg 对应于有电容存在能暂时存储电平的连接
tri1, tri0 对应于需要上拉或下拉的连接
如果不明确地说明连接是何种类型,应该是指wire类型。而不指定就默认为1位wire类型。
专门指定出wire类型,可能是多位或为使程序易读。
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