A.2 System coherency interface signals

The following table shows the system coherency interface signals.

Table A-2 System coherency interface signals

Signal
Direction
Description
SYSCOREQ
Input
System coherency request.
This input transitions:
  • HIGH, to indicate the master requesting to enter the coherency domain.
  • LOW, to indicate the master requesting to exit the coherency domain.
SYSCOACK
Output
System coherency acknowledge.
This output transitions to the same level as SYSCOREQ when the request to enter or exit the coherency domain is complete.
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