Electronic device with card interface

Details Electronic device with card interface Electronic device with card interface

2005-01-11

2005-01-11

Auve, Glenn A. (Department: 2112)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus interface architecture

C710S104000, C710S062000, C710S033000, C712S039000

Reexamination Certificate

active

06842818

ABSTRACT:
When initializing a card-shaped device inserted in a card interface, operation mode acquiring means incorporated in an electronic device acquires operation mode information, stored in a register file incorporated in the card-shaped device, by a predetermined procedure using a predetermined pin. Operation mode setting means incorporated in the electronic device executes signal assignment on a plurality of data pins peculiar to an operation mode indicated by the acquired operation mode information, thereby switching a data transfer width, and allowing the card-shaped device to operate in the operation mode.

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PC Card Standard, Release 7, Electrical Specif ication vol. 2., (Feb. 1999).

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