ARM Architecture - Bus Architecture
In ARM bus arbitration, which signal is typically asserted by a device to indicate it wants to use the bus?
In ARM bus arbitration, which signal is typically asserted by a device to indicate it wants to use the bus?
easy📝 Factual Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Identify bus arbitration signals
Devices use specific signals to communicate bus access requests.Step 2: Determine the request signal
The Bus Request (BREQ) signal is asserted by a device to request bus control.Final Answer:
Bus Request (BREQ) -> Option DQuick Check:
Request signals initiate access, grants confirm it. [OK]
Quick Trick: Devices assert BREQ to request bus access [OK]
Common Mistakes:
- Confusing Bus Grant with Bus Request
- Selecting unrelated signals like Clock Enable
- Assuming Data Ready signals bus request
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