FW82801DBM S L6DN Intel, FW82801DBM S L6DN Datasheet - Page 219
FW82801DBM S L6DN
Manufacturer Part Number
FW82801DBM S L6DN
Description
Manufacturer
Intel
Datasheet
1.FW82801DBM_S_L6DN.pdf
(615 pages)
Specifications of FW82801DBM S L6DN
Lead Free Status / RoHS Status
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5.17.8.4
5.17.9
Intel
®
82801DBM ICH4-M Datasheet
Effect of Resets on Port-Routing Logic
As mentioned above, the Port Routing logic is implemented in the Suspend power well so that re-
enumeration and re-mapping of the USB ports is not required following entering and exiting a
system sleep state in which the core power is turned off.
USB 2.0 Legacy Keyboard Operation
The ICH4 must support the possibility of a keyboard downstream from either a USB UHCI or a
USB EHCI port. The description of the legacy keyboard support is unchanged from USB UHCI
(See
The EHC provides the basic ability to generate SMIs on an interrupt event, along with more
sophisticated control of the generation of SMIs.
Suspend Well Reset
Core Well Reset
D3-to-D0 Reset
HCRESET
Section
Reset Event
5.16.8).
Effect on Configure Flag
cleared (0)
cleared (0)
no effect
no effect
Effect on Port Owner Bits
Functional Description
no effect
no effect
set (1)
set (1)
219
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