Nonvolatile Memory Controller Buffer Mode Switching
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Solution Overview
Problem
Current nonvolatile memory apparatuses face increased current consumption and potential operational failures due to the continuous enablement of complementary signals, even after switching from high-speed synchronous mode to low-speed asynchronous mode, leading to unnecessary power usage and potential defects.
Innovation Solution
A nonvolatile memory apparatus with a controller that enables complementary signal input/output buffers only in synchronous mode and disables them upon transitioning to asynchronous mode, using a reset command to immediately disable these signals when not required, thereby minimizing power consumption and preventing excessive speed-related defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If complementary signal input/output buffers are continuously enabled to support high-speed synchronous mode operations, then high-speed operation capability is improved, but current consumption increases and operational failures may occur in low-speed mode
Solution Approach 1:
The patent implements dynamic switching of complementary signal buffers between enabled and disabled states based on the current operation mode. The controller dynamically enables complementary buffers only when transitioning to synchronous mode and disables them when operating in asynchronous mode, optimizing power consumption while maintaining high-speed capability when needed.
Solution Approach 2:
The patent changes the operational state parameter of complementary signal buffers from a static continuous-enabled state to a dynamic state that changes based on operation mode. By monitoring mode transition commands and adjusting buffer enablement accordingly, the system adapts power consumption to actual operational requirements.
2Reliability
If complementary signal buffers remain enabled after mode transition to reduce switching delays, then operational reliability is improved, but unnecessary power consumption occurs
Solution Approach 1:
The patent prepares complementary signal buffers for potential high-speed operations by maintaining the capability to quickly enable them when needed. The system uses mode transition commands as triggers to pre-prepare the buffer state, ensuring rapid response to mode changes while avoiding continuous power consumption during low-speed operation.
3Adaptability or versatility
If the same flash memory apparatus structure is used for various applications, then adaptability is improved, but optimization for specific applications (including power efficiency) deteriorates
Solution Approach 1:
The patent implements a universal flash memory apparatus structure that can operate in both asynchronous and synchronous modes, adapting to different application requirements. By incorporating mode transition capability and dynamic buffer management, the single apparatus structure achieves application-specific optimization without requiring separate hardware designs.
Data Source
AI summary
Various embodiments of a nonvolatile memory apparatus configured to operate in a first operation mode and a second operation mode are disclosed. In one exemplary embodiment, the apparatus may include: a controller configured to enable complementary signal input/output buffers in response to a command for entry into the first operation mode and disable the complementary signal input/output buffers in response to a command for transition to the second operation mode while operating under the first operation mode.