An expansion module for a Handspring Visor includes a multi-master AMBA Advanced System Bus (ASB). The Springboard bus of the visor is coupled to the ASB bus via Springboard-to-ASB-bus bridge. This bridge includes a protocol translator and a second Arm7 to ASB interface. The protocol translator translates...http://www.google.fr/patents/US6658508?utm_source=gb-gplus-shareBrevet US6658508 - Expansion module with external bus for personal digital assistant and design method therefor
Expansion module with external bus for personal digital assistant and design ...