Hi,
We have recently started using the “B version of the AM3352BZCZD60. We have noted a possible problem with USB performance when compared to the previously used AM3352ZCZD60 (no B).
We use USB interface via a USB HUB SMSC USB2512i. We noted here that the original prototypes made with AM3352ZCZD60 perform better than the later version AM3352BZCZD60. We have verified that the USB hub interface in isolation works OK and are now looking at possible noise which may affect performance. The symptom we see is that USB packet errors are occurring and that at a certain packet size transfer, the USB interface fails.
Is there any errata’s or known issues, or changes to the USB interface between the original AM3352ZCZD60 vs AM3352BZCZD60 which may cause problems, or if there any other changes we need to know about? In particular USB1 interface is the one in question.
Regards
Allen