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发表于 2003-3-4 21:56:00
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about off-page:
Off-page connectors provide connection between schematic pages within the same schematic folder. An off-page connector is connected by name to other off-page connectors within the same schematic folder. Like-named off-page connectors in different schematic folders are not connected.
about port:
you can list the hierarchical ports of the selected schematic pages in the browse window and use this command to follow ports through a hierarchy when tracing problems in a hierarchical design.
实际使用中,同一个schematic folder下的page用port是可以实现互连的,对于总线信号的标注,要加注off-page,而且都是有方向的,但方向性不会影响网表的生成,在做DRC时会有警告。
IC的datasheet一般是从生产商的网站上down的,中文网站中www.21ic.com的资料库较全,可以试试看,引脚的方向是指的type吗(见下图),若不做仿真就不用管它。
[em01][em01][em01][em01] 沟通无极限 [em01][em01][em01][em01] |
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