Memory card having multiple interfaces and reset control method thereof

An apparatus for controlling resetting of a memory card having a plurality of interfaces and a plurality of function blocks, each function block being associated with a corresponding interface, the apparatus comprising:

• an interface detector for detecting a status of a selected interface of the plurality of interfaces having a reset signal provided thereto, wherein, after detecting and before interrupting or resetting, the interface detector further detects a status of one or more interfaces other than the selected interface;
• a reset block for receiving the reset signal from the selected interface and information indicative of the status of the selected interface and the one or more interfaces other than the selected interface from the interface detector, and for:
• (1) resetting the plurality of function blocks in response to the reset signal from the selected interface and when the one or more interfaces other than the selected interface have a different status from the selected interface, or
• (2) generating a signal to interrupt a function block associated with the selected interface when the one or more interfaces other than the selected interface has a same status as the selected interface, the function block associated with the selected interface interrupted without resetting the function block associated with the one or more other interfaces other than the selected interface;
• and
• a processor for interrupting the function block associated with the selected interface based on the interrupt signal.

A memory card, comprising:

• a plurality of interfaces;
• a plurality of function blocks, each function block being associated with a corresponding interface;
• an interface detector detecting a selected interface of the plurality of interfaces having a reset signal provided thereto, wherein, after detecting and before interrupting or resetting, the interface detector further detects a status of one or more interfaces other than the selected interface;
• a reset block for receiving the reset signal from the selected interface and information indicative of the status of the selected interface and the one or more interfaces other than the selected interface from the interface detector, and for:
• (1) resetting the plurality of function blocks in response to detection of the reset signal for the selected interface and when the one or more interfaces other than the selected interface has a different status from the selected interface, or
• (2) generating a signal to interrupt a function block associated with the selected interface when the one or more interfaces other than the selected interface has a same status as the selected interface, the function block associated with the selected interface interrupted without resetting the function block associated with the one or more other interfaces other than the selected interface;
• and
• a processor to interrupt the function block associated with the selected interface based on the interrupt signal.

An article of manufacture having a machine accessible medium including data that, when accessed by a machine, cause the machine to perform a method of resetting a memory card having a plurality of interfaces and a plurality of function blocks, each function block being associated with a corresponding interface, the method comprising:

• detecting a reset signal for a selected interface of the plurality of interfaces;
• after detecting and before interrupting or resetting, determining a status of one or more interfaces other than the selected interface;
• and
• resetting the plurality of function blocks in response to detection of the reset signal for the selected interface and when the one or more interfaces other than the selected interface has a different status from the selected interface wherein, when the one or more interfaces other than the selected interface has a same status as the selected interface, then generating a signal to interrupt a function block associated with the selected interface without resetting the function block associated with the one or more interfaces other than the selected interface.

A reset control system, comprising:

• a host;
• a card;
• a plurality of interfaces between the host and the card;
• a plurality of function blocks on the card, each function block being associated with a corresponding interface;
• an interface detector on the card detecting a selected interface of the plurality of interfaces having a reset signal provided thereto from the host, wherein, after detecting and before interrupting or resetting, the interface detector detects a status of one or more interfaces other than the selected interface;
• and
• a reset block on the card for receiving the reset signal from the selected interface and information indicative of the status of the selected interface and the one or more interfaces other than the selected interface from the interface detector, and for:
• (1) resetting the plurality of function blocks in response to detection of the reset signal for the selected interface and when the one or more interfaces other than the selected interface has a different status from the selected interface, or
• (2) generating a signal to interrupt a function block associated with the selected interface when the one or more interfaces other than the selected interface has a same status as the selected interface, the function block associated with the selected interface interrupted without resetting the function block associated with the one or more other interfaces other than the selected interface.