ARM Architecture - Power Modes
Which register is commonly used to configure deep sleep mode in ARM Cortex processors?
Which register is commonly used to configure deep sleep mode in ARM Cortex processors?
easy📝 Factual Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Identify control register for sleep modes
The System Control Register (SCR) controls sleep and deep sleep modes in ARM Cortex processors.Step 2: Verify other registers' roles
PC, LR, and SP are related to program flow and stack, not power modes.Final Answer:
SCR (System Control Register) -> Option AQuick Check:
Deep sleep config register = B [OK]
Quick Trick: SCR controls sleep modes in ARM CPUs [OK]
Common Mistakes:
- Confusing SCR with program counter
- Thinking stack pointer controls sleep
- Mixing link register with power modes
Master "Power Modes" in ARM Architecture
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