User manual

Blinky_D comments
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I got sort of canonical. The counter was already a register because
of the way it was being used. At least I think it was.
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The led_bit is aways updated in the always_ff block. The
next_led_bit = led_bit determines what the updated value is if
there isn’t a change to be made.
EECS 452 – Fall 2014 Lecture 5 – Page 100/143 Tuesday – September 16, 2014