Memory System Write Command Effective Length Field
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Solution Overview
Problem
Existing memory systems face inefficiencies when handling data lengths smaller than the minimal writable data unit, leading to increased overhead and power consumption due to the need for padding with dummy data, which degrades performance.
Innovation Solution
Implementing a write command with additional fields such as an enable field, dummy control field, and effective length field to allow data transfer without padding, optimizing data transfer and reducing overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data is padded with dummy data to meet minimal writable data unit length, then the memory system can store data properly, but overhead and power consumption increase
Solution Approach 1:
The patent extracts and eliminates the dummy data padding operation from the data storage process. By introducing a new command format that explicitly indicates the effective data length, the system transfers only the actual data without adding unnecessary dummy data, thereby removing the energy-wasting padding operation while maintaining storage compliance.
Solution Approach 2:
The patent changes the parameter representation by adding an effective length field to the command structure. This parameter change allows the memory system to distinguish between the minimal writable data unit length and the actual effective data length, enabling precise data transfer without padding while still meeting the minimal writable unit requirement through proper parameter interpretation.
2Reliability
If data is padded with dummy data to meet minimal writable data unit length, then the memory system can store data properly, but overhead increases
Solution Approach 1:
The patent extracts and eliminates the dummy data padding operation from the data storage process. By introducing a new command format that explicitly indicates the effective data length, the system transfers only the actual data without adding unnecessary dummy data, thereby removing the overhead-wasting padding operation while maintaining storage compliance.
Solution Approach 2:
The patent applies partial action by transferring only the effective data portion rather than the full minimal writable data unit. The effective length field enables the system to perform exactly the necessary data transfer amount without excessive padding, optimizing the quantity of data transferred while ensuring proper storage compliance.
3Device complexity
If traditional write commands are used without effective length indication, then the command structure is simple, but dummy data padding is required for small data transfers
Solution Approach 1:
The patent applies preliminary action by including the effective length indication in the command structure itself, before the data transfer occurs. This allows the memory system to prepare for precise data transfer without needing to pad with dummy data, improving productivity while maintaining acceptable command structure complexity through the addition of essential length parameters.
Solution Approach 2:
The patent introduces an effective length field as an intermediary parameter between the command and the data transfer process. This intermediary provides precise information about the actual data length, enabling the system to optimize data transfer efficiency without excessive padding while keeping the command structure organized and manageable through structured parameter fields.
Data Source
AI summary
In certain aspects, a method of operating a memory system is disclosed. A write command is received, which indicates that a length of data transferred from a host is smaller than a length of a minimal writable data unit of the memory system. Responsive to the write command, the data is stored in the memory device.