Microcontroller Access Device Interrupt Reporting Channels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing microcontroller access devices face inefficiencies in reporting errors and interrupts due to congestion and delays in communication through shared interconnects, which hinder the speed and reliability of error handling and management operations.
Innovation Solution
Implementing alternative interrupt reporting channels that allow direct communication between controlled devices and microcontroller access devices, bypassing the interconnect, and utilizing spare capacity in response messages to enhance error reporting, along with encoding techniques for efficient interrupt handling and storage in control status registers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If error reporting uses shared interconnect, then device complexity is reduced, but error reporting speed and reliability deteriorate due to congestion and delays
Solution Approach 1:
The patent segments the error reporting function from the main data communication path by implementing a separate dedicated error reporting channel. This allows error interrupts to be transmitted independently from regular data traffic, eliminating congestion and delays caused by shared interconnect usage while maintaining overall system structural simplicity.
Solution Approach 2:
The patent introduces an intermediary error reporting channel that acts as a dedicated communication path between controlled devices and the microcontroller. This intermediary structure specifically handles error interrupts separately from the main interconnect, improving error reporting speed and reliability without significantly increasing overall device complexity.
2Speed
If alternative interrupt reporting channels are implemented, then error reporting speed improves, but device complexity increases
Solution Approach 1:
The patent extracts the error reporting function from the main communication infrastructure and implements it as a separate, dedicated channel. This extraction allows error interrupts to be transmitted with high speed and reliability through a specialized path, while the complexity is contained to a specific subsystem rather than affecting the entire system architecture.
Solution Approach 2:
The patent implements preliminary error detection and interrupt signaling mechanisms at the controlled device level, allowing errors to be captured and reported immediately through the alternative channel before they can affect system operation. This preliminary action ensures fast error reporting without requiring complex real-time processing throughout the system.
3Reliability
If dedicated error reporting channel is used, then error handling reliability improves, but loss of time for implementing the channel increases
Solution Approach 1:
The patent merges the error reporting channel with existing system resources where possible, such as utilizing available communication protocols and integrating with the microcontroller's existing interrupt handling infrastructure. This merging approach improves error handling reliability through dedicated error reporting while minimizing implementation time by leveraging existing system capabilities rather than building entirely new infrastructure.
Data Source
AI summary
Alternative reporting channels are implemented for interrupts to a microcontroller device. An access device for a microcontroller may support performing requests from a microcontroller to controlled devices via an interconnect. The access device may have a separate communication channel with at least one of the controlled devices to receive interrupts. When an interrupt is signaled, an indication of the interrupt may be stored at a storage device at the access device. The microcontroller may read from the storage device at the access device to obtain the indication of the interrupt.