Multi-Interface Memory Card Selective Reset Control
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Solution Overview
Problem
Conventional memory cards with multiple interfaces can only communicate with a host through one interface at a time, as they reset entirely in response to a reset signal across any interface, preventing simultaneous communication across multiple interfaces.
Innovation Solution
A method and apparatus for resetting a memory card with multiple interfaces, where a reset signal is detected for a specific interface, and only the corresponding function block is interrupted, allowing all function blocks to be reset when no other interface is active, enabling simultaneous communication across multiple interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire card is reset in response to a reset signal from any interface, then the card can be reliably reset, but simultaneous communication across multiple interfaces is prevented
Solution Approach 1:
The patent divides the card into multiple independent function blocks, each associated with a specific interface. When a reset signal is received, only the corresponding function block is reset rather than the entire card. This segmentation allows different function blocks to operate independently and simultaneously across multiple interfaces, resolving the contradiction between reliable resetting and communication efficiency.
Solution Approach 2:
The patent implements local reset capability where each function block has its own reset control. The reset signal is processed locally at each function block level, allowing selective resetting of only the affected function block. This local quality approach enables the system to maintain communication activity in other function blocks while resetting the targeted one, thus achieving simultaneous multi-interface communication.
2Adaptability or versatility
If multiple controllers communicate through multiple interfaces, then the card can support various host types, but the card cannot communicate simultaneously through all interfaces
Solution Approach 1:
The patent segments the communication system into separate function blocks, with each block handling a specific interface type. This segmentation allows each function block to independently manage its interface communication, enabling the card to simultaneously communicate through multiple interfaces with different host types while maintaining adaptability across diverse communication protocols.
Solution Approach 2:
The patent introduces dynamic reset control where the reset behavior of each function block can be independently controlled. The system can dynamically decide which function blocks to reset based on current communication needs, allowing flexible adaptation to different host types and communication scenarios while enabling simultaneous multi-interface operation when needed.
Data Source
AI summary
A method and apparatus for resetting a memory card having a plurality of interfaces and a plurality of function blocks, wherein each function block may be associated with a corresponding interface, may include detecting a reset signal for a selected interface of the plurality of interfaces, and interrupting a function block associated with the selected interface. When the selected interface is the only active interface, all function blocks in the memory card may be reset. If interfaces other than the selected interface are active, only the selected interface may be reset.