User manual

Bit-serial data transfers
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Moore’s law has been running for some time now. Space on a chip
become very inexpensive, pins and interconnections have not.
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Many devices have relatively low data rates. Maybe 1M 8 or 16-bit
words per second.
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Modern run-of-the-mill digital drivers often can drive PCB-traces
and actual wires at rates of 50 Mbs and often higher.
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For many of the synchronous bit-serial protocols everything is edge
driven. The inter/intra clock rates do not have to be constant!
EECS 452 – Fall 2014 Lecture 5 – Page 110/143 Tuesday – September 16, 2014