Command Merging Unit for Data Transmission Devices
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Solution Overview
Problem
Conventional data transmission methods are inefficient when handling a large number of commands from a host to a peripheral device, leading to prolonged processing times due to excessive command queuing, as they do not effectively merge or process continuous or overlapping memory blocks.
Innovation Solution
A data transmission device with a command register and a command merging unit that analyzes and merges original commands into a single merging command when the corresponding memory blocks are continuous or partially overlapped, reducing the number of commands required for processing by the peripheral device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple original commands are sent to the peripheral device, then the host can issue comprehensive data access requests, but the processing time increases due to sequential execution of each command
Solution Approach 1:
The command merging unit merges multiple original commands that access continuous memory blocks into a single merged command. This combining approach reduces the number of commands the peripheral device must process sequentially, thereby decreasing processing time while maintaining the ability to access multiple memory blocks comprehensively.
2Stability of the object's composition
If the peripheral device processes commands sequentially according to transmission sequence, then command processing order is maintained, but processing efficiency decreases when command queue is long
Solution Approach 1:
Multiple commands accessing continuous memory blocks are merged into a single command, reducing the total number of commands in the queue. This maintains stable processing order for merged command groups while improving overall processing efficiency by reducing sequential processing overhead.
3Reliability
If the peripheral device executes commands one-by-one according to the number of commands, then each command is processed accurately, but the overall processing speed is slow
Solution Approach 1:
The system merges multiple original commands into fewer merged commands that cover continuous memory blocks. This reduces the number of execution cycles required while maintaining accurate data access, thereby improving processing speed without sacrificing execution reliability.
4Device complexity
If no command merging is performed, then the system maintains simple command processing logic, but the number of commands to be processed remains high
Solution Approach 1:
The command merging unit introduces moderate complexity by analyzing memory block continuity and merging compatible commands. This additional processing logic significantly reduces the number of commands that need to be transmitted and processed, improving overall system efficiency despite the added merging functionality.
Data Source
AI summary
A data transmission device and a command merging method for data transmission are provided. The data transmission device includes a command register and a command merging unit. The command register receives and temporary storages a plurality of original commands, wherein the original commands include a plurality of memory blocks. When the command merging unit judges these memory blocks of the original commands to be a continuous memory block, the command merging unit merges the original commands into a merging command, and transmits the merging command to a peripheral device. Thus, the multiple commands send by the host can be analyzed and merged by the data transmission device to decrease a number of the commands to be proceed by the peripheral device, so as to speed up a command processing time of the peripheral device efficiently.