There's a wrong link in the Digikey order page under Datasheets
(Beagle Protocol Analyzer):
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=296-23428-ND
Perhaps it should link to the manual at:
http://www.beagleboard.org/uploads/Beagle_HRM_B4.pdf
Bill Mar