Clock Insertion Delay Matching for PLD Signal Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for synchronizing clock and data signals in programmable logic devices (PLDs) often require additional hardware delay elements, leading to increased power consumption, physical area, and complexity, particularly due to mismatches in clock and data signal delays across different components.
Innovation Solution
Intentionally delaying clock signals to low complexity components to compensate for delays in high complexity components, eliminating the need for additional hardware delay elements by synchronizing signals without introducing extra components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional hardware delay elements are used to synchronize clock and data signals, then synchronization reliability is improved, but power consumption increases
Solution Approach 1:
The patent extracts and eliminates the need for additional hardware delay elements by utilizing the inherent delay characteristics of different circuit block types. Instead of adding external delay components, the system leverages the natural delay differences between high-complexity and low-complexity circuit blocks to achieve synchronization, thereby removing unnecessary hardware and reducing power consumption.
Solution Approach 2:
The system achieves synchronization through self-service by allowing different circuit blocks to utilize their inherent delay characteristics. The clock insertion delay varies automatically based on the circuit block type, creating a self-regulating synchronization mechanism that does not require external control or additional power-consuming components.
2Reliability
If additional hardware delay elements are used to synchronize clock and data signals, then synchronization reliability is improved, but physical area increases
Solution Approach 1:
The patent extracts and eliminates the need for additional hardware delay elements by utilizing the inherent delay characteristics of different circuit block types. Instead of adding external delay components, the system leverages the natural delay differences between high-complexity and low-complexity circuit blocks to achieve synchronization, thereby removing unnecessary hardware and reducing power consumption.
Solution Approach 2:
The circuit blocks serve multiple functions: they perform their primary logic functions while simultaneously providing clock insertion delay characteristics that contribute to signal synchronization. This multi-functionality eliminates the need for separate delay elements, reducing overall device area.
3Reliability
If additional hardware delay elements are used to synchronize clock and data signals, then synchronization reliability is improved, but device complexity increases
Solution Approach 1:
The patent extracts and eliminates the need for additional hardware delay elements by utilizing the inherent delay characteristics of different circuit block types. Instead of adding external delay components, the system leverages the natural delay differences between high-complexity and low-complexity circuit blocks to achieve synchronization, thereby removing unnecessary hardware and reducing power consumption.
Solution Approach 2:
The system achieves synchronization through self-service by allowing different circuit blocks to utilize their inherent delay characteristics. The clock insertion delay varies automatically based on the circuit block type, creating a self-regulating synchronization mechanism that does not require external control or additional power-consuming components.
4Speed
If clock insertion delays are reduced for low complexity components, then processing speed is improved, but synchronization accuracy deteriorates
Solution Approach 1:
The patent applies local quality by allowing different circuit blocks to have different clock insertion delay characteristics based on their complexity. High-complexity blocks naturally exhibit greater delay, while low-complexity blocks have smaller delay. This localized differentiation maintains optimal processing speed for each block type while achieving overall synchronization accuracy through the varied delay characteristics.
Solution Approach 2:
The system utilizes parameter changes by varying the clock insertion delay parameter according to circuit block complexity. Rather than forcing uniform delay values, the system allows the delay parameter to change naturally with block complexity, achieving both speed optimization and synchronization accuracy.
Data Source
AI summary
Various techniques are provided to efficiently synchronize clock and data signals in programmable logic devices (PLDs). In one example, a method comprises configuring an intellectual property (IP) block of the PLD to receive a first clock signal and a first data signal at a first component of the IP block, determining a delay associated with the first clock signal between a first input and the first component, configuring a programmable logic cell (PLC) to receive a second clock signal and output the first data signal to the IP block, determining a delay period to synchronize the first clock signal and the first data signal at the first component of the IP block, and configuring an adjustable delay element to apply the delay period to the second clock signal to synchronize the first clock signal and the first data signal at the first component of the IP block.