This folder contains the documentation of the following modules:
- AXI Crossbar (
axi_xbar) - AXI Demultiplexer (
axi_demux) - AXI Multiplexer (
axi_mux) - AXI4-Lite Mailbox (
axi_lite_mailbox)
We adhere to the AMBA AXI and ACE Protocol Specification, Issue F.b, abbreviated as AXI Spec in these documents.
We follow the terminology defined in the AXI Glossary (see p. 433 of the AXI Spec).
Additionally, we define the following terms.
On a channel with valid and ready signals, a handshake occurs when both valid and ready are high on a clock edge. See section A3.2.1 of the AXI Spec for details on the handshake process.
A transaction is in flight for a given interface when the handshake of the Ax beat of a transaction has occurred on that interface but the handshake of the (last) response of that transaction has not yet occurred on that interface.
A handshake is pending for a given channel when the valid signal is high and the ready signal is low.