Non-Volatile Memory Controller Power Mode Adaptation
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Solution Overview
Problem
Rewritable non-volatile memory storage apparatuses face stability issues due to insufficient power supplied by the data transmission interface when multiple memory dies are enabled simultaneously, leading to reduced performance and reliability.
Innovation Solution
A data writing method that determines whether the host system's interface complies with a specific standard, using a general mode or power saving mode to limit the number of enabled memory dies, and recording the status of memory dies to optimize data writing, ensuring that data is written into idle memory dies to prevent power overload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple memory dies are enabled simultaneously to increase writing speed, then productivity is improved, but power consumption increases causing stability issues
Solution Approach 1:
The system dynamically adjusts the number of enabled memory dies based on power availability. The controller monitors power conditions and adaptively changes the operational state of memory dies, enabling more dies when power is充足 and fewer dies when power is limited, thus resolving the contradiction between writing speed and power consumption
Solution Approach 2:
The system changes the operational parameters of memory dies by controlling their enable/disable states. By adjusting the number of active memory dies as a variable parameter, the system can optimize the balance between writing speed (productivity) and power consumption according to real-time power availability
2Productivity
If multiple memory dies are enabled simultaneously to shorten data writing time, then productivity is improved, but reliability deteriorates due to power insufficiency
Solution Approach 1:
The controller implements feedback control by monitoring power conditions and adjusting the number of enabled memory dies accordingly. This closed-loop control ensures that the system maintains stable operation by preventing power overload, thus improving reliability while still achieving high writing speeds when power conditions permit
3Productivity
If the number of enabled memory dies is increased to improve writing performance, then productivity is improved, but power supply stability worsens
Solution Approach 1:
The system dynamically adapts the configuration of enabled memory dies based on power supply conditions. By making the number of active dies a dynamic parameter rather than a fixed value, the system can optimize writing performance while maintaining power supply stability across different operating conditions
Data Source
AI summary
A data writing method for writing data from a host system into a plurality of memory dies of a rewritable non-volatile memory storage apparatus is provided. The data writing method includes determining whether the data transmission interface of the host system complies with a first interface standard or a second interface standard. The data writing method also includes using a general mode to write the data into the memory dies when the data transmission interface of the host system complies with the first interface standard and using a power saving mode to write the data into the memory dies when the data transmission interface of the host system complies with the second interface standard. Accordingly, the data writing method can effectively prevent the stability of the rewritable non-volatile memory storage apparatus from reducing due to insufficient power supplied by the data transmission interface.