Memory Device DVFSC Voltage Scaling by Host Configuration
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Solution Overview
Problem
Dynamic voltage frequency scaling (DVFSC) operations in memory devices can degrade operating performance when not considering the driving environment with a host device, leading to reduced reliability.
Innovation Solution
A memory device that includes a memory controller to check for DVFSC operations, determine a low voltage level based on host device settings, and communicate this level to the host device, ensuring optimal power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If DVFSC operation is performed without considering host device settings, then power consumption is reduced, but operating reliability is degraded
Solution Approach 1:
The memory controller checks host device settings information stored in the memory device before performing DVFSC operations. This feedback mechanism ensures that voltage scaling decisions are made based on actual host configuration, preventing performance degradation while maintaining power reduction benefits
Solution Approach 2:
The system performs preliminary checks of host device settings and determines appropriate low voltage levels before executing DVFSC operations. This preliminary action ensures that the memory device is properly configured to handle voltage changes, maintaining reliability while enabling power savings
2Loss of energy
If low voltage level is lowered to reduce power, then power consumption decreases, but operating performance is degraded
Solution Approach 1:
The system dynamically determines the low voltage level based on host device settings rather than using a fixed voltage level. This dynamic adjustment allows the memory device to optimize the balance between power consumption and operating performance according to specific host configurations
Solution Approach 2:
The invention changes the voltage level parameter based on host device settings information. By adjusting the low voltage level to match host capabilities, the system maintains acceptable operating performance while achieving power reduction goals
Data Source
AI summary
A memory device includes a memory cell for storing data, and a memory controller configured to check whether a dynamic voltage frequency scaling core (DVFSC) operation is used, check information stored in the memory device indicating a setting of the host device in response to the DVFSC operation being used, determine a level of a low voltage used for the DVFSC operation based on the information, and transmit the determined level of the low voltage used for the DVFSC operation to the host device.