Read data channel
The read data channel carries both the read data and the read response information from the slave to the master, and includes:
• The data bus, that can be 8, 16, 32, 64, 128, 256, 512, or 1024 bits wide
• A read response signal indicating the completion status of the read transaction. [4]
Write data channel
The write data channel carries the write data from the master to the slave and includes:
• the data bus, that can be 8, 16, 32, 64, 128, 256, 512, or 1024 bits wide
• a byte lane strobe signal for every eight data bits, indicating which bytes of the data are valid.
Write data channel information is always treated as buffered, so that the master can perform write transactions without slave acknowledgement of previous write transactions. [4]