wfi
Wait For Interrupt
WFI
Puts the processor into a low-power state until an interrupt occurs.
Details
The Wait For Interrupt instruction puts the processor into a low-power state until an interrupt occurs.
Pseudocode Operation
// Wait for interrupt/event (low-power standby)Example
WFI
Encoding
Binary Layout
11010101
000
00011
0010
00011
11111