Microsector Debug Trace Architecture for Faster FPGA Reconfiguration
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Solution Overview
Problem
Existing programmable logic devices face inefficiencies in resource allocation due to sector-based allocations that are imprecise and wasteful, leading to overallocation and slower configuration times, particularly in partial reconfigurations and single-event upset detection.
Innovation Solution
Implementing a microsector architecture with smaller, 1-bit data registers and micro-network-on-chip (microNOC) structures that enable finer granularity and efficient resource allocation, allowing for faster partial reconfigurations and improved data transactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If sector-based allocation is used in programmable logic devices, then resource allocation is simplified, but resource utilization efficiency deteriorates due to over-allocation
Solution Approach 1:
The patent divides the logic fabric into smaller microsectors (e.g., 4-LAB microsectors) rather than using traditional larger sectors. This segmentation allows for more precise resource allocation matching actual circuit requirements, reducing over-allocation while maintaining manageable allocation complexity through hierarchical organization of microsectors into larger regions.
2Ease of operation
If traditional sector-based configuration is used, then configuration process is straightforward, but configuration time increases particularly for partial reconfigurations
Solution Approach 1:
By segmenting the logic fabric into smaller microsector units, the patent enables partial reconfiguration of only the necessary microsectors rather than entire sectors. This reduces configuration time significantly for partial reconfigurations while maintaining straightforward configuration processes through the use of region definitions that group microsectors hierarchically.
3Adaptability or versatility
If larger sector regions are used, then routing flexibility is maintained, but data transaction speed deteriorates due to softer logic routing requirements
Solution Approach 1:
The patent uses smaller microsector regions that can be tightly bound to specific circuit designs, reducing the need for extensive soft logic routing. This segmentation allows for more direct data paths and faster transactions while maintaining routing flexibility through the hierarchical region structure that can accommodate different routing needs at different levels of abstraction.
Data Source
AI summary
Systems and methods described herein may relate to data transactions involving a microsector architecture. Control circuitry may organize transactions to and from the microsector architecture to, for example, enable direct addressing transactions as well as batch transactions across multiple microsectors. A data path disposed between programmable logic circuitry of a column of microsectors and a column of row controllers may form a micro-network-on-chip used by a network-on-chip to interface with the programmable logic circuitry.