Cypress CY8C20x46 Computer Hardware User Manual


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CY8C20x46, CY8C20x66
Errata Document
November 7, 2008 Document No. 001-32940 Rev. *C 2
n SCOPE OF IMPACT
This condition does not affect USB communications but could cause corner case issues with USB lines’
rise/fall matching specification. Signal integrity tests were run using the Cypress development kit for the part
and excellent eye was observed with supply voltage of 3.15V.
Figure 1. Eye Diagram
n WORKAROUND
Avoid the trigger condition by using lower tolerance voltage regulators.
n FIX STATUS
This issue will be corrected in the next new silicon revision.
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