EXCRETORY SYSTEM
CORTEX
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Wait-For-Event (WFE) instructions.
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Wait-For-Interrupt (WFI)
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Both WFI and WFE
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None of these
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Detailed explanation-1: -The WFI (Wait for Interrupt) instruction causes the processor to enter sleep mode immediately. The processor can be woken up from the sleep mode by interrupts, reset, or by debug operation.
Detailed explanation-2: -Sleep mode will halt the CPU clock but will leave the system clock, flash and peripheral clocks operational. Deep sleep mode will not just halt the CPU clock but also turn off the system clock, flash and the PLL.
Detailed explanation-3: -The term “sleep mode” (sometimes called “power down mode”) refers to a condition in which an embedded system enters a low-power mode. Typically, the microcontroller (MCU) ceases to perform any computations, although it will retain any current data, and peripheral functions will stop working.