Event Trigger Master Reduces Processor Interruptions
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Solution Overview
Problem
The frequent interruption of processor operations by event notices from peripheral circuits reduces processor efficiency, as it constantly stops and restarts program code execution to manage these events.
Innovation Solution
An event trigger master is introduced, comprising an event receiving interface, a storage element with a command queue, and a state machine that manages event requests, allowing the processor to focus on other tasks by handling peripheral device operations independently through a master interface and peripheral system bus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the processor directly responds to event requests from peripheral devices, then the system can handle events in real-time, but the processor efficiency deteriorates due to frequent interruptions
Solution Approach 1:
The patent introduces an event trigger master as an intermediary component between peripheral devices and the processor. This master receives event requests from peripheral devices, stores them in a queue, and manages them independently, preventing direct interruptions to the processor. The processor only receives notifications when command queues are empty or full, significantly reducing interruption frequency while maintaining event response capability.
Solution Approach 2:
The patent segments the event handling function into separate components: the event trigger master handles individual event requests and command execution, while the processor focuses on high-level control. This segmentation allows the processor to avoid being bogged down by frequent event interruptions, improving its overall efficiency while events are handled by the specialized master component.
2Reliability
If the processor continuously monitors and responds to event notices, then all events are handled promptly, but the operation time for other tasks is reduced
Solution Approach 1:
The event trigger master is designed to autonomously manage event requests without requiring continuous processor intervention. It independently receives events, determines whether command queues are full, executes commands, and only notifies the processor when the queue state changes (empty or full). This self-service capability allows the processor to dedicate more time to other tasks while ensuring complete event handling.
3Manufacturing precision
If the processor handles all event-driven tasks directly, then control precision is maintained, but the complexity of the processor increases
Solution Approach 1:
The patent extracts the complex event handling logic from the processor and relocates it to a dedicated event trigger master. This master manages the command queues, executes commands, and handles event routing, thereby reducing processor complexity. The processor maintains control precision by receiving notifications of queue state changes and performing high-level control operations when needed.
Data Source
AI summary
An event trigger master coupled to a first peripheral device and including an event receiving interface, a storage element, a state machine, and a master interface is provided. The event receiving interface is configured to receive an event request. The storage element includes a command queue to store a set command. The state machine performs the set command to access the first peripheral device or a second peripheral device in response to the event request being triggered. The master interface is coupled to the state machine, the first peripheral device, and the second peripheral device. The state machine accesses the first or second peripheral device via the master interface.