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Usage Notes and Known Design Exceptions to Functional Specifications

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Advisory USB/GPIO38: GPIO38/VBUS Cannot be Used as an Output

Revision(s) Affected A

Details GPIO38 cannot be used as an output and may fail in the system if used as such at any

time.

Workaround(s) Do not use the output function on this pin. This is fixed in Revision B silicon.

Advisory USB: VBUS Pin May Clamp to 3.3-V Supply, Preventing Proper OTG Mode

Operation

Revision(s) Affected 0

Details The VBUS pin may clamp to V

DDIO

, preventing the pulldown resistors from taking effect in

USB-OTG mode when attempting to end a session.

Workaround(s) None. This is fixed in Revision A silicon.

Advisory USB: Host Mode — Cannot Communicate With Low-Speed Device Through a Hub

Revision(s) Affected 0

Details When the USB controller is operating as a Host and a low-speed packet is sent to a

device through a hub, the subsequent Start-of-Frame is corrupted. After a period of time,

this corruption causes the USB controller to lose synchronization with the hub, which

results in data corruption.

Workaround(s) None. This is fixed in Revision A silicon.

F28M35x Concerto™ MCU Silicon Errata SPRZ357J–August 2011–Revised July 2014

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MAP electronics Cocerto-B Spezifikationen Seite 20