ARM Architecture - Power Modes
Which of the following is the correct syntax to enable a low-power mode in ARM assembly?
Which of the following is the correct syntax to enable a low-power mode in ARM assembly?
easy📝 Factual Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Recognize low-power mode instructions
WFI (Wait For Interrupt) is used to enter low-power sleep mode.Step 2: Check other instructions
MOV, ADD, and LDR are general instructions not related to power modes.Final Answer:
WFI ; Wait For Interrupt -> Option CQuick Check:
Low-power instruction = WFI [OK]
Quick Trick: WFI puts CPU to sleep until an interrupt occurs [OK]
Common Mistakes:
- Choosing general instructions instead of power mode commands
- Confusing MOV or ADD with power control
- Not recognizing WFI as a low-power instruction
Master "Power Modes" in ARM Architecture
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