Memory Device Shutdown Pattern Detection
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Solution Overview
Problem
Existing memory devices face challenges in reducing latency and power consumption during shutdown procedures, as they often require time-consuming and power-intensive operations after receiving a shutdown command.
Innovation Solution
A memory device that identifies shutdown patterns in a set of commands from a host device, allowing it to initiate operations associated with the shutdown procedure before receiving the actual shutdown command, thereby reducing latency and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the memory device waits for the shutdown command before initiating shutdown operations, then it ensures proper command sequencing and control, but it increases shutdown latency and power consumption
Solution Approach 1:
The memory device performs preliminary analysis of incoming command sequences to identify shutdown patterns before the actual shutdown command is received. When a characteristic sequence of commands (such as multiple read commands followed by a write command) is detected, the device preemptively initiates shutdown operations, thereby reducing the time required to complete shutdown while maintaining proper operational sequencing.
2Reliability
If the memory device performs time-consuming operations after receiving the shutdown command, then it ensures data integrity and proper shutdown procedure, but it increases power consumption during shutdown
Solution Approach 1:
The memory device executes necessary shutdown preparation operations in advance when the shutdown pattern is recognized. This includes initiating data flushing, cache clearing, and other time-consuming operations before the formal shutdown command is processed. By performing these operations preliminarily, the device ensures data integrity and shutdown reliability while minimizing the duration and power consumption of active shutdown processing.
Solution Approach 2:
The memory device autonomously monitors its own command input stream and self-determines when a shutdown sequence is approaching. This self-service capability allows the device to automatically initiate shutdown preparations without external intervention, ensuring reliable shutdown procedures while optimizing power consumption by avoiding extended high-power states during the shutdown transition.
Data Source
AI summary
Methods, systems, and devices for techniques for detection of shutdown patterns are described. A memory device may receive a set of commands from a host device. The memory device may determine whether the set of commands are associated with a shutdown procedure based on a pattern of the received set of commands. The memory device may initiate one or more operations associated with the shutdown procedure based on identifying that the set of commands are associated with the shutdown procedure. The memory device may receive a shutdown command for the shutdown procedure after initiating the one or more operations associated with the shutdown procedure. The memory device may determine that the set of commands are associated with the shutdown procedure based on a quantity of the set of commands, one or more types of the set of commands, other thresholds associated with the pattern, or a combination thereof.