For signal definitions and protocol, see the AMBA AXI Protocol Specification. When user parity is enabled, drive the correct parity value on WDATA_PARITY for Write transactions. The RDATA_PARITY bus provides the Read data parity along with the Read data. The parity calculation is done on a per-byte basis where a 1 is asserted if the sum of the bits in a byte is Odd.
Each AXI port can accept 64 read transactions and 32 write transactions.