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7.7.2. ACP user signals

ACP transactions can cause coherent requests to the system. Therefore ACP requests must pass Inner and Outer Shareable attributes to the L2. To pass the shareability attribute, use the encodings described in Table 7.16. See ACP interface signals for more information.

Table 7.16. Shareability attribute encoding
0b01Inner Shareable
0b10Outer Shareable


This is the same encoding as AxDOMAIN on ACE, except that a value of 0b11 is not supported.