Patent ID: 6792493
Filing Date: 2004-09-14
Classification: G06F

Abstract:
A microprocessor formed on a semiconductor substrate comprising:a central processing unit which provides a plurality of logical addresses; one or more address signal terminals which provide physical addresses external to the microprocessor corresponding to the logical addresses; one or more data signal terminals which provide or receive data to or from external to the microprocessor; one or more control signal terminals; and a control unit which providers a plurality of control signals external to the microprocessor via the one or more control signal terminals; wherein the one or more control signal terminals receive a card detect signal which indicates connection of a card device; further comprising: a memory management unit coupled to the central processing unit and converting the logical addresses into the physical addresses; wherein the central processing unit accesses an external address space of the microprocessor, wherein the external address space is divided into a plurality of address areas, one of which is allocated to the card device.