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What is the main purpose of bus arbitration in ARM architecture?

easy📝 Conceptual Q11 of 15
ARM Architecture - Bus Architecture
What is the main purpose of bus arbitration in ARM architecture?
ATo store data temporarily in registers
BTo increase the clock speed of the processor
CTo decide which device can use the shared bus at a time
DTo encrypt data before transmission
Step-by-Step Solution
Solution:

  1. Step 1: Understand bus arbitration role

    Bus arbitration manages access to a shared communication path (bus) among multiple devices.

  2. Step 2: Identify main purpose

    Its main goal is to prevent conflicts by deciding which device uses the bus at a given time.

  3. Final Answer:

    To decide which device can use the shared bus at a time -> Option C

  4. Quick Check:

    Bus arbitration controls bus access = A [OK]
Quick Trick: Bus arbitration controls who uses the bus at a time [OK]
Common Mistakes:
  • Confusing bus arbitration with processor speed control
  • Thinking it stores data instead of managing access
  • Assuming it encrypts data

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