Can you describe the functioning of a basic single-channel DMA controller? Also, how does it manage multiple channels and peripheral agents simultaneously?

Very hard Difficulty

Very-hard questions are the ultimate test of your expertise and preparation. They demand not just knowledge, but creativity and strategic thinking, often addressing unique or highly technical aspects of your field.

Technical question

Technical questions probe into your industry-specific knowledge and skills. They require precise answers and are an opportunity to show your expertise and practical abilities in your field.

Here's a Hint

Clearly explain DMA's purpose of offloading CPU, then contrast single-channel operation with multi-channel approaches, addressing arbitration and performance considerations.