ARM Architecture - Bus Architecture
Consider a system with 3 masters and 2 slaves connected via a bus matrix. If Master 1 and Master 2 request access to Slave 1 simultaneously, what does the bus matrix do?
Consider a system with 3 masters and 2 slaves connected via a bus matrix. If Master 1 and Master 2 request access to Slave 1 simultaneously, what does the bus matrix do?
medium📝 Analysis Q13 of 15
Step-by-Step Solution
Solution:
Step 1: Understand conflict management in bus matrix
When multiple masters request the same slave, the bus matrix manages access to avoid conflicts.Step 2: Identify conflict resolution method
The bus matrix queues one master and grants access to the other, ensuring orderly access without data corruption.Final Answer:
Queues one master and grants access to the other to avoid conflict -> Option CQuick Check:
Bus matrix queues masters to avoid conflicts [OK]
Quick Trick: Bus matrix queues masters to prevent simultaneous slave access [OK]
Common Mistakes:
- Thinking both masters access slave simultaneously
- Assuming bus matrix blocks all requests
- Believing automatic redirection to other slaves
Master "Bus Architecture" in ARM Architecture
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