Interface Link Equalization With Adaptive Buffer-Based Timing
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Solution Overview
Problem
Existing interface devices lack the ability to adaptively determine transmission parameters based on link characteristics, leading to suboptimal performance in terms of electromagnetic interference (EMI) reduction and data transmission efficiency.
Innovation Solution
The interface device adaptively adjusts clock frequency ranges and skip ordered-set intervals based on buffer status information from both devices, determining optimal parameters to minimize pre-underflow or pre-overflow, thereby improving transmission and reception performance while maintaining EMI characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fixed transmission parameters are used, then device complexity is reduced, but data transmission efficiency deteriorates due to buffer pre-underflow or pre-overflow conditions
Solution Approach 1:
The patent implements dynamic adjustment of transmission parameters (clock frequency range and skip ordered-set interval) based on real-time buffer status monitoring. The interface device transitions from fixed parameters to dynamic parameters that adapt to changing data transmission conditions, preventing buffer pre-underflow and pre-overflow conditions while optimizing transmission efficiency.
Solution Approach 2:
The patent changes physical parameters (clock frequency range and skip ordered-set interval) based on buffer status to optimize transmission. By adjusting these parameters dynamically according to buffer fill levels, the system prevents harmful conditions without requiring complete system redesign, resolving the contradiction between simplicity and efficiency.
2Productivity
If clock frequency range is adjusted to optimize transmission, then data transmission efficiency improves, but electromagnetic interference characteristics deteriorate
Solution Approach 1:
The patent employs feedback mechanisms where buffer status is continuously monitored and used to adjust transmission parameters. This closed-loop control ensures that clock frequency and skip ordered-set interval are optimized only when necessary, maintaining EMI performance while improving transmission efficiency through targeted parameter adjustments based on actual buffer conditions.
3Reliability
If skip ordered-set interval is adjusted to prevent buffer overflow, then reliability improves, but data transmission efficiency deteriorates
Solution Approach 1:
The patent dynamically adjusts the skip ordered-set interval based on real-time buffer status rather than using a fixed conservative value. This allows the system to maintain reliability by preventing buffer overflow when necessary while maximizing transmission efficiency when buffer conditions permit, resolving the contradiction between reliability and productivity.
Data Source
AI summary
A method of operating an interface device including a first elastic buffer is provided. The method of operating the interface device includes performing a link equalization operation, checking a transmission mode of the interface device, and determining a transmission parameter of the interface device based on a status of the first elastic buffer or a status of a second elastic buffer included in another interface device communicating with the interface device when the transmission mode is a transmission parameter adjustment mode.