WebAt a master interface, read data from transactions with the same ARID value must arrive in the order in which the master issued the addresses. Data from read transactions with different ARID values can arrive in any order. Read data of transactions with different ARID values can be interleaved.. A slave must return read data for a sequence of transactions … WebJun 24, 2024 · The key features of the AXI protocol are: • separate address/control and data phases. • support for unaligned data transfers, using byte strobes. • uses burst-based transactions with only the start address issued. • separate read and write data channels, that can provide low-cost Direct Memory Access (DMA)
Model Design for AXI4 Master Interface Generation
WebIf both transactions arrive at the AXI slave simultaneously, the behavior depends on the slave. For a dual-port RAM, you could conceivably read while writing to the same address. … WebIf the transaction is indicated as "non-modifiable," and both the Read and Write commands use the same ARID/AWID, the order must be preserved. This doesn't cover the case of simultaneous Read and Write commands, which is certainly possible for AXI. Here's some additional info I found in section A4.3.2 of the AXI Spec (ARM document IHI 0022F.b). so much beauty in dirt
Write data interleaving - AXI Forum for Electronics
WebChapter 4 Transfer Interleaving and Ordering Read this for a description of the stream interleaving and ordering restrictions. Appendix A Comparison with the AXI4 Write Data Channel Read this for a description of the key differences between the AXI4-Stream interface and the AXI4 write data channel. Appendix B Revisions WebSince the Read address is not aligned to 128-bits (16 bytes), the Memory data bus contains 128-bits data corresponding to the Read address aligned to 128-bits (16 bytes). ... What is data interleaving in AXI? Write data interleaving enables a slave interface to accept interleaved write data with different AWID values. The slave declares a write ... WebPossible read/data interleaving with the same restrictions as described in (b) Defined-Length Burst Support on DMAC DW_ahb_dmac supports incremental (INCR) bursts by default. For better performance, defined-length bursts, … small cross necklace with diamonds