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Tue Jul 17 19:22:53 EDT 2018

UART

A UART is a counter that is started by a 1->0 transition, and performs
sampling based on that counter.

I find this hard to express without making a drawing.

Here's an example:
https://www.nandland.com/vhdl/modules/module-uart-serial-port-rs232.html

This points at one difficult issue: for some algorithms, assignment is
a sparser way to encode.

Another
https://www.fpga4fun.com/SerialInterface4.html




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