PDIUSBD11 Errata Revision History: Rev. Date April 2003 2003 Desc
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PDIUSBD11_Errata_030401
PDIUSBD11 Errata
Revision History: Rev. Date April 2003 2003 Description Updated Workaround section suggest instead First release. Author Rajaram Veerappan Rajaram Veerappan
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Philips Semiconductors
PDIUSBD11 Errata
Errata PDIUSBD11 device does function properly when connected through Hi-Speed Hi-Speed Host Controller. Problem Description
When PDIUSBD11 device connected Hi-Speed Universal Serial (USB) Host Controller through Hi-Speed hub, sometimes does enumerate properly. This because device fails respond with tokens from Host Controller. This problem cannot seen when device directly connected Hi-Speed Host Controller. device does function correctly when connected shown Figure enumerate all, does, fail after enumeration.
EVIC
I-SPEED
I-SPEE LLER
Figure
device, however, functions correctly when connected given Figure Figure Figure Figure Figure
HOST CONTRO LLER
Figure
HOST CONTRO LLER
Figure
PDIUSBD11_Errata_030401
Koninklijke Philips Electronics N.V. 2003. rights reserved.
Errata
Rev. 1.1-
Philips Semiconductors
PDIUSBD11 Errata
HOST CONTROLLER
Figure
NTRO LLER
Figure
NTRO LLER
Figure
This problem occurs because internal mechanism PDIUSBD11 device such that whenever frame interval jitters above three full-speed (FS) times, device upstream locked. This prevents PDIUSBD11 from responding Host Controller.
Implication
device cannot connected through Hi-Speed Controller Hi-Speed Host Controller.
Workaround
Philips PDIUSBD12.
PDIUSBD11_Errata_030401
Koninklijke Philips Electronics N.V. 2003. rights reserved.
Errata
Rev. 1.1-
Philips Semiconductors
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Koninklijke Philips Electronics N.V. 2003
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