Electronic devices

摘要

A storage device 3, such as an SD card, that is coupled to a host device 2, such as a mobile phone, includes a computing environment 8. The computing environment 8 includes an application processing part 6, and a separate interface processing part 7. The application processing part 6 of the computing environment 8 is operable to execute one or more applications on the storage device 3. The interface processing part 7 of the computing environment 8 includes an interface processor that interfaces between a communications protocol used between the host device 2 and the storage device 3, and a communications protocol used by the application processor in the application processing part 6 of the storage device 3. The interface processor communicates with the application processor via interrupts and a shared memory 9.

主权项

1. A storage device operable to be coupled to a host electronic device via an interface between the storage device and the host electronic device, the storage device comprising:
at least one memory operable to store at least one application and provide mass storage functionality; at least one processor including at least one application processing part operable to execute the at least one application on the storage device and at least one interface processing part operable to interface between a communications protocol used between the host electronic device and the storage device, and a communications protocol required or expected by an application being executed on the application processing part; and communications interfaces operable to couple the interface processing part to the host electronic device and to the application processing part of the at least one processor on the storage device, such that communication between the host electronic device and the application being executed on the application processing part takes place via the interface processing part.