MLP Report

Errata and Contingencies
Operating
System
Failing Test
Expiry
Date
ID
Number
Type
Error Description
Windows 7
Windows 7 64-bit
Vista
Vista 64-bit
PCI Hardware Compliance Test
For Systems
12/01/2010
401
Erratum
The following PCI Compliance test
failure is acceptable: Bit 15 (Bridge
Configuration Retry Enable) in the
Device Control register (offset 8h) in
the PCI Express Capability table
must be read-only and always
return 0 as it is reserved for devices
other than PCI Express to PCI/PCI-X
Bridges. Assertion 13A41D3E-2576-
41DC-A67C-525DA3637CEA This
failure is acceptable because this is
a PCIe 1.1 feature and the WLP
requires compliance with only PCIe
1.0a.
Windows 7
Windows 7 64-bit
Vista
Vista 64-bit
1) UAA Test - Win7 (System)
2) UAA Test - Vista or
Server08 (System)
06/01/2015
513
Erratum
UAA Test requires the Traffic Priority
bit to be read/write - however there
are two specs that apply, and they
conflict. One says the bit must be
read/write, the other says it must
be read-only. Contact has been
made with the author of both specs
(Intel) but until this point is clarified
we cannot fail submissions
containing this test failure.
Windows 7
Windows 7 64-bit
Vista
Vista 64-bit
1) Class Driver Fidelity Test -
Win7 (System, Manual)
2) HDAudio Class Driver
Fidelity Test - Vista (System,
Manual)
07/31/2011
598
Erratum
The European Union requires the
headphone output level to be <=
150 mVrms for headphone jacks.
There's a note in WLP requirement
AUDIO-0006 that states, in the
presence of regional regulations, the
output level requirement for
headphones is dropped from >=
1000 mVrms to >= 120 mVrms.
This provides freedom for
manufacturers to meet both the EU
<= 150 mVrms @ 32 Ohms and the
WLP >= 120 mVrms @ 32 Ohms
requirements. The Fidelity Test tests
headphones at 300 Ohm load,
though. Without knowledge of the
output impedance at the jack, the
test cannot extrapolate what the
output level at 32 Ohms would have
been from the output level at 300
Ohms. The test assumes that the
output level at 32 Ohms will be
*less* than the output level at 300
Ohms, though. So any
measurement >= 120 mVrms at
300 Ohms "could be" a passing
result, depending on the output
impedance.