Intel 6 SERIES CHIPSET - SPECIFICATION UPDATE 01-2011 Specification page 16

12. USB V
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Problem: Intel 6 Series Chipset High-
specification.
• The maximum expected V
Implication: There are no known functional failures.
Note: USB-IF does not require testing of V
Workaround: None.
Status: No Plan to Fix.
13. Delayed Periodic Traffic Timeout Issue
Problem: If a periodic interrupt transaction is pushed out to the x+4 micro-fr ame boundary, the
RMH may not wait for the transaction to timeout before starting the next transaction.
Implication: If the next Full-Speed or Lo w-Speed tr ansaction is i ntended for the same de vice
targeted by the periodic interrupt, the
device dependent and cannot b e guaranteed. The implication may differ depending on
the nature of the transaction:
• If the transaction is asynchronous and the device does not respond, it will
eventually be retried with no impact.
• If the transaction is periodic and the device does not respond, the transfer may be
dropped. A single dropped periodic transaction should not be noticeable by end
user.
Note: This issue has only been seen in a synthetic environment.
Workaround: None.
Status: No Plan to Fix.
16
Maximum Violation
Speed USB
is 440 mV.
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2.0 V ma y ex ceed the USB 2.
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for USB Logo Certification.
successful completion of that
Errata
0
transaction is
Specification Update