[Solved] What is wrong with this low-power design approach?Disable clock to all modules permanently to save power. | ARM Architecture

ARM Architecture - Power Modes

What is wrong with this low-power design approach?

Disable clock to all modules permanently to save power.

ADisabling all clocks permanently stops system operation

BDisabling clocks increases power consumption

CDisabling clocks has no effect on power

DDisabling clocks improves performance

Step-by-Step Solution

Solution:

Step 1: Understand clock gating limits
Disabling clocks saves power but stopping all clocks permanently halts the system.
Step 2: Evaluate consequences
System cannot function without clocks; thus, permanent disable is incorrect.
Final Answer:
Disabling all clocks permanently stops system operation -> Option A
Quick Check:
Permanent clock disable = system halt [OK]

Quick Trick: All clocks off means no CPU activity [OK]

Common Mistakes:

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