1.1.2. AXI interface attributes

The slave interface has the following attributes, that are fixed for a particular configuration of the SMC:

Write acceptance capability

The maximum number of active write transactions that a slave can accept.

Read acceptance capability

The maximum number of active read transactions that a slave can accept.

Combined acceptance capability

The maximum number of active transactions that a slave can accept. This indicates where the slave has combined read and write transaction storage so this is mutually exclusive to the write and read acceptance capability.

Write interleave depth

The number of active write transactions for which the slave can receive data. This is counted from the earliest transaction.

Read data reordering depth

The number of active read transactions for which the slave can transmit data. This is counted from the earliest transaction.

Table 1.3 lists the attribute formats.

Table 1.3. Attribute formats

AttributeValue
Combined acceptance capability

2 for SMC (PL351) and SMC (PL352)

3 for SMC (PL353) and SMC (PL354)

Write interleave depth1
Read data reorder depthRead acceptance capability
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