Memory Control Chip Dynamic Clock Gating for Power Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic apparatuses face challenges in reducing power consumption without compromising usage quality, as existing power-saving methods often require longer resume times from hibernation mode, affecting performance.
Innovation Solution
A memory apparatus with a control chip and energy-saving control unit that stops outputting internal clock signals to specific circuit groups and memory control units when no processing commands are present, allowing the chip to enter a standby mode with reduced power consumption without entering hibernation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If hibernation mode is entered to reduce power consumption, then power saving is effectively achieved, but resume time becomes longer
Solution Approach 1:
The patent implements dynamic power management by introducing multiple operational modes (normal mode, standby mode, and hibernation mode) that can be transitioned between based on system activity. The control chip dynamically adjusts its operational state by selectively stopping clock signals to different circuit groups, enabling the system to adapt power consumption levels to actual usage requirements without being locked into a single static state.
Solution Approach 2:
The control chip is divided into multiple independent circuit groups (first circuit group and second circuit group) that can be independently controlled. The patent applies segmentation by selectively stopping clock signals to specific circuit groups based on their activity state, allowing partial power saving without requiring the entire chip to enter hibernation mode, thus reducing resume time while maintaining power savings.
2Use of energy by moving object
If clock signals are stopped to reduce power consumption, then power saving is achieved, but system responsiveness may be affected
Solution Approach 1:
The system dynamically transitions between operational states based on real-time activity detection. When activity is detected in a circuit group, the clock signal is restored to that group, ensuring responsive performance when needed. The dynamic nature of this approach allows the system to maintain responsiveness for active functions while saving power for inactive functions.
Solution Approach 2:
The control chip detects activity in advance and proactively manages clock signal distribution. By monitoring activity states and preemptively stopping or restoring clock signals to appropriate circuit groups, the system prepares for power saving opportunities without compromising the responsiveness of active components, as the decision-making process occurs before power state transitions are finalized.
Data Source
AI summary
A memory apparatus and an energy-saving control method thereof are provided. The internal clock signal sent to a specific circuit group is stopped outputting when it is determined that no processing command is to be processed currently and current events are finished being processed, so as to reduce power consumption of a control chip.