Electronic device with card interface
First Claim
1. An electronic device that communicates with a storage device, the storage device comprising a plurality of connector pins comprising data pins and a power signal pin, the connector pins configured to be connectable to the electronic device,the electronic device comprising an interface,the interface configured to execute data transfer from the storage device to the electronic device using m number of data pins among the data pins (where m is a natural number) in a first operation mode,the interface configured to execute data transfer from the storage device to the electronic device using n number of data pins among the data pins (where n is a natural number greater than m) in a second operation mode,the interface configured to receive an operation mode information of the storage device, the operation mode information concerning the second operation mode,the interface configured to receive an operation voltage information concerning an operation voltage of the storage device,the interface configured to receive the operation mode information from the storage device via at least one of the connector pins, when a first command for reading the operation mode information is transmitted to the storage device via at least one of the connector pins,the interface configured to receive the operation voltage information from the storage device via at least one of the connector pins, when a second command for reading the operation voltage information is transmitted to the storage device via at least one of the connector pins,the interface configured to switch from the first operation mode to the second operation mode and from the second operation mode to the first operation mode in accordance with a selection by the electronic device.
1 Assignment
0 Petitions
Accused Products
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.
44 Citations
20 Claims
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1. An electronic device that communicates with a storage device, the storage device comprising a plurality of connector pins comprising data pins and a power signal pin, the connector pins configured to be connectable to the electronic device,
the electronic device comprising an interface, the interface configured to execute data transfer from the storage device to the electronic device using m number of data pins among the data pins (where m is a natural number) in a first operation mode, the interface configured to execute data transfer from the storage device to the electronic device using n number of data pins among the data pins (where n is a natural number greater than m) in a second operation mode, the interface configured to receive an operation mode information of the storage device, the operation mode information concerning the second operation mode, the interface configured to receive an operation voltage information concerning an operation voltage of the storage device, the interface configured to receive the operation mode information from the storage device via at least one of the connector pins, when a first command for reading the operation mode information is transmitted to the storage device via at least one of the connector pins, the interface configured to receive the operation voltage information from the storage device via at least one of the connector pins, when a second command for reading the operation voltage information is transmitted to the storage device via at least one of the connector pins, the interface configured to switch from the first operation mode to the second operation mode and from the second operation mode to the first operation mode in accordance with a selection by the electronic device.
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11. An electronic device that communicates with a storage device, the storage device comprising a plurality of connector pins comprising data pins and a power signal pin, the connector pins configured to be connectable to the electronic device,
the electronic device comprising an interface, the interface configured to execute data transfer from the electronic device to the storage device using m number of data pins among the data pins (where m is a natural number) in a first operation mode, the interface configured to execute data transfer from the electronic device to the storage device using n number of data pins among the data pins (where n is a natural number greater than m) in a second operation mode, the interface configured to receive an operation mode information of the storage device, the operation mode information concerning the second operation mode, the interface configured to receive an operation voltage information concerning an operation voltage of the storage device, the interface configured to receive the operation mode information from the storage device via at least one of the connector pins, when a first command for reading the operation mode information is transmitted to the storage device via at least one of the connector pins, the interface configured to receive the operation voltage information from the storage device via at least one of the connector pins, when a second command for reading the operation voltage information is transmitted to the storage device via at least one of the connector pins, the interface configured to switch from the first operation mode to the second operation mode and from the second operation mode to the first operation mode in accordance with a selection by the electronic device.
Specification