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A.5. WFE and WFI standby signals

Table A.6 shows the WFE and WFI standby signals.

Table A.6. WFE and WFI standby signals
NameI/OSource or destinationDescription
EVENTIIExternal coherent agent

Event input for Cortex-A9 processor wake-up from WFE mode.

EVENTOO

Event output. This signal is active-HIGH for one processor clock cycle when an SEV instruction is executed.

STANDBYWFEOPower controller

Indicates if the processor is in WFE mode:

0

Processor not in WFE standby mode.

1

Processor in WFE standby mode.

STANDBYWFIO

Indicates if the processor is in WFI mode:

0

Processor not in WFI standby mode.

1

Processor in WFI standby mode.


See Standby modes.

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