Write-back Buffer for Misaligned Memory Write Operations
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Misaligned write operations in electronic memory systems lead to reduced data throughput due to the need for additional clock cycles, impacting performance and efficiency.
Innovation Solution
Incorporating a write-back buffer to store and modify data during misaligned write operations, allowing subsequent read and write operations to occur in a single clock cycle, thereby improving data throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If misaligned write operations are performed in conventional memory systems, then data can be written to memory, but data throughput is reduced due to additional clock cycles required
Solution Approach 1:
The write-back buffer pre-stores data that needs to be written back to memory during subsequent clock cycles. By preparing the data in advance in the buffer, the system avoids the need to wait for sequential write operations, thereby reducing the time loss associated with misaligned writes and improving overall data throughput.
Solution Approach 2:
The write-back buffer acts as an intermediary between the data source and the memory. It receives data during misaligned write operations and then provides this pre-stored data to memory in subsequent operations, effectively mediating the conflict between immediate write requirements and memory timing constraints, thus improving throughput without requiring additional clock cycles.
2Productivity
If a write-back buffer is added to improve throughput, then data throughput increases, but device complexity increases
Solution Approach 1:
The write-back buffer is implemented as a simple intermediary storage element positioned between the data source and memory. This buffer captures the essence of the intermediary principle by providing a straightforward data holding mechanism that improves throughput without introducing complex control logic or multiple buffering stages, thus minimizing the increase in device complexity.
Solution Approach 2:
The write-back buffer creates a copy of the data during misaligned write operations, storing it temporarily before the actual memory write occurs. This copying approach allows the system to decouple the data preparation from the memory write operation, improving throughput while maintaining simplicity since the buffer merely duplicates data without requiring complex processing or multiple memory interfaces.
Data Source
AI summary
An apparatus comprises a source to communicate data, and a storage circuit to store data communicated by the source. The apparatus further comprises a write-back buffer to store data communicated by the source in a misaligned write operation in order to improve throughput between the source and the storage circuit.