Broadcom has contact info for all their sales offices, distributors, and manufacturer's
reps on their web site, www.broadcom.com, click on "sales offices".
They have an app. note, 5201/5221-AN200-R, that discusses issues of compatibility
between the BCM 5221 and the 5201, as well as 5221/5220-AN01 related to the new
device, and the data sheet 5221-DS06-R. You have to talk to a sales rep or somebody
to get access to the app notes.
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