Interface: Levels of AbstractionPart 1: Mechanisms (Wiring)

• Physical: Geometrical arrangement of I/O locations, how to connect, etc.

• Electrical: Restrictions/requirements on currents, voltages, noise, risetimes, falltimes, etc.

• Logic (Combinational): Largely a transcoding (discretization) of electrical limits into logic domain

• Sequential (Stateful): form of the model: clocked synchronous, asynchronous (what?), etc.

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