Bridge Device Integrating Flash Memory Interfaces
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Solution Overview
Problem
The existing bridge devices are unable to support the latest processes or standards for data storage devices, leading to compatibility issues and preventing host devices from accessing newly developed data storage devices.
Innovation Solution
A bridge device is designed to integrate high-speed transmission interfaces made by different processes or standards, allowing it to assist host devices in accessing data storage devices while maintaining backward compatibility. This is achieved through a method that involves receiving commands and data between memory controllers, processing them, and transferring them between the host device and the data storage device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a bridge device uses existing transmission interfaces to access data storage devices, then manufacturing costs are saved, but compatibility with latest standards is lost
Solution Approach 1:
The bridge device integrates multiple transmission interfaces (first transmission interface for host device and second transmission interface for data storage device) that support different standards and processes within a single device. This multi-functional design allows the bridge to accommodate both legacy and latest standards, enabling a host device with one interface type to access data storage devices with different interface types without requiring separate bridge devices for each combination.
2Adaptability or versatility
If a bridge device integrates multiple transmission interfaces from different processes or standards, then compatibility is improved, but device complexity increases
Solution Approach 1:
The bridge device acts as an intermediary between the host device and the data storage device, translating commands and data between different transmission interface protocols. The control unit within the bridge manages the complexity by coordinating the first transmission interface (coupled to the host) and the second transmission interface (coupled to the data storage device), allowing each interface to operate according to its own standard while maintaining overall system compatibility.
3Ease of operation
If the host device uses a transmission interface that does not match the data storage device standard, then the host device can access older storage devices, but it cannot access newly developed storage devices
Solution Approach 1:
The bridge device incorporates multiple transmission interfaces that support different standards, enabling a host device with a specific interface type to access data storage devices with various interface types. The bridge's control unit manages protocol translation and data transfer between the host's transmission interface and the data storage device's transmission interface, regardless of their different standards, thus expanding the host's access capability to both legacy and latest standards.
Data Source
AI summary
A bridge device includes a first controller and a second controller. The first controller includes a first transmission interface. The second controller includes a second transmission interface. The first transmission interface and the second transmission interface are flash memory interfaces. In a program mode, the first transmission interface receives a first command from the second transmission interface and obtains first transfer data from a bus in response to the first command. A value of the first command is optionally set to a first value or a second value. The first value indicates a memory command transfer operation in a first direction and the second value indicates a memory data transfer operation in the first direction. The first transmission interface processes the first transfer data according to the value of the first command to obtain a memory command or written data.