Transmitting Chip Crosstalk Prevention via Array Mapping
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Solution Overview
Problem
Existing data transmission technologies fail to effectively prevent crosstalk in high-speed data transmission, especially when the array of data pins on a transmitting chip differs from the array of data lines, leading to inefficiencies in crosstalk prevention operations.
Innovation Solution
A system that includes a transmitting chip capable of performing crosstalk prevention operations by sensing data patterns on data lines based on array information, using a pattern sensing circuit and crosstalk prevention unit to adjust delay values, driving forces, and logic values of data outputted to the data lines, thereby addressing the mismatch between data pin arrays and line arrays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional crosstalk prevention scheme is used based on data pin array, then crosstalk can be prevented when pin array matches line array, but crosstalk prevention fails when data pin array differs from data line array
Solution Approach 1:
The patent introduces an array information table as an intermediary data structure that maps the relationship between data pin positions and data line positions. This table serves as a mediator that translates pin array information to line array information, enabling the pattern sensing circuit to correctly identify adjacent lines regardless of whether the pin array matches the line array configuration. The array information table contains position order information that acts as a bridge between the physical pin arrangement and the logical line arrangement.
Solution Approach 2:
The patent performs preliminary actions by pre-storing array information about the data line positions in the transmitting chip before data transmission occurs. The array information table is prepared in advance with the correct position mappings, allowing the pattern sensing circuit to quickly and accurately determine which lines are adjacent to each other without needing to detect this information during operation. This preliminary preparation enables the system to handle any pin-line array configuration mismatch.
2Productivity
If data is transmitted at high speed, then transmission efficiency is improved, but crosstalk and jitter increase affecting signal integrity
Solution Approach 1:
The patent applies preliminary action by detecting data patterns and identifying potential crosstalk conditions before the actual data transmission occurs. The pattern sensing circuit analyzes the data to be transmitted and determines which data lines may be affected by crosstalk based on their spatial arrangement stored in the array information table. This allows the system to pre-calculate and apply compensation values to the affected lines, ensuring that when high-speed transmission occurs, the signal integrity is already optimized to counteract expected crosstalk and jitter effects.
Solution Approach 2:
The patent changes parameters by dynamically adjusting transmission parameters such as delay values and driving forces for data lines based on detected crosstalk conditions. When the pattern sensing circuit identifies a data pattern that may cause or suffer from crosstalk, the crosstalk prevention unit modifies transmission parameters for the affected lines - such as introducing differential delay or adjusting driver strength - to compensate for the harmful effects. This parameter adjustment allows high-speed transmission to continue while maintaining signal integrity despite the presence of crosstalk and jitter.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate crosstalk prevention even when the data pin array on the transmitting chip differs from the data line array, ensuring reliable data transmission by correctly identifying and mitigating crosstalk patterns across the data lines.
Implementation Method 1
Crosstalk may occur due to capacitance appearing between adjacent two data lines
Data Source
AI summary
A system for transmitting data includes a plurality of data lines configured to transmit the data and a transmitting chip configured to output the data to the data lines and perform a crosstalk prevention operation in response to a data pattern of the data to be transmitted through the data lines and array information of the data lines to prevent crosstalk from occurring in the data lines.