Asynchronous Multi-Rail Data Transmission Without Feedback Delay
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Solution Overview
Problem
Current asynchronous clockless circuit designs in chip communication suffer from inflexible control flow, data transmission delays, and reliance on feedback signals, leading to inefficient data transmission.
Innovation Solution
Implement an asynchronous multi-rail transmission protocol with a full-duplex communication mode, using a programmable delay unit to set time intervals based on transmission distance, and encode data and control information to ensure efficient data processing without feedback signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If feedback signals are used in asynchronous clockless communication, then transmission accuracy is improved, but transmission delay increases
Solution Approach 1:
The patent extracts and removes the feedback signal mechanism from the communication system. By eliminating the feedback signal that occupies communication time, the system achieves faster data transmission while maintaining accuracy through alternative means such as time interval-based control and data validation at the receiving end.
2Productivity
If data transmission rate is increased, then system throughput is improved, but transmission delay increases
Solution Approach 1:
The patent implements dynamic time interval adjustment based on transmission distance. The time interval between data transmissions is dynamically set according to the specific communication scenario, allowing the system to optimize throughput while preventing delays by ensuring the receiver is ready for the next transmission.
Solution Approach 2:
The patent employs periodic data transmission at predetermined time intervals. This periodic action allows the system to maintain a steady throughput by transmitting data at optimized intervals rather than continuously, preventing receiver buffer overflow and ensuring proper data processing time.
3Adaptability or versatility
If control flow flexibility is improved, then data transmission reliability is enhanced, but communication complexity increases
Solution Approach 1:
The patent segments the communication protocol into distinct functional components: data transmission mode, control information mode, and time interval control. This segmentation simplifies the overall protocol by dividing complex control flows into manageable segments that can be handled independently, reducing implementation complexity while maintaining flexibility.
Data Source
AI summary
Disclosed are an information transmission method and a related device. The information transmission method includes: A first node receives first data or a first data signal, where the first data signal is obtained by encoding a first flit, and the first flit is obtained by decomposing the first data; and the first node sends the first data signal to a second node based on a preset time interval, where the preset time interval is determined based on a transmission distance between the first node and the second node. A sending rate is controlled by configuring an interval for periodically sending data, to ensure that a receive end can effectively process data within the time. In addition, a feedback signal that increases a transmission delay is omitted in asynchronous clockless communication. In this way, a transmission delay is reduced and a system throughput rate is increased.