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TCU SYSCO interface signals

The following table shows the TCU SYSCO interface signals.

Table A-4 TCU SYSCO interface signals

Signal

Direction

Description

syscoreq

Output

System coherency request.

This output transitions:

HIGHTo indicate that the master is requesting to enter the coherency domain.
LOWTo indicate that the master is requesting to exit the coherency domain.

syscoack

Input

System coherency acknowledge.

This input transitions to the same level as syscoreq when the request to enter or exit the coherency domain is complete.

See the Arm AMBA AXI and ACE Protocol Specification, AXI3, AXI4, AXI5, ACE and ACE5 for more information about these signals.

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