A.5. WFE and WFI Standby signals

Table A.8 shows the WFI and WFE Standby mode signals.

Table A.8. Standby and wait for event signals

NameI/O

Source or

Destination

Description
EVENTIIExternal coherent agent

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

EVENTOO

Event output. This signal is active when one SEV instruction is executed.

STANDBYWFE[N:0]OPower controller

Indicates if a Cortex-A9 processor is in WFE Standby mode.

0 = processor not in WFE Standby mode1 = processor in WFE Standby mode.

STANDBYWFI[N:0]O

Indicates that a Cortex-A9 processor is in WFI Standby mode.

0 = processor not in WFI Standby mode1 = processor in WFI Standby mode.


See Individual Cortex-A9 processor power management.

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