AR# 50620

AXI Interconnect - Are there plans to add a feature to convert multi-beat bursts into multiple single-beat transactions when connected to an AXI4-Lite slave?

描述

In (UG761) page 21, "AXI Interconnect Core Limitations" it states the following:

"The AXI Interconnect core does not convert multi-beat bursts into multiple single-beat transactions when connected to an AXI4-Lite slave"

Is there a plan to make this an enhancement feature?

解决方案

There is not a plan to convert bursts into singles for AXI4-lite slaves.

The reason is that if bursts are required, the core used should be an AXI4 interface. 

What this is asking for is for the interconnect to provide the burst capability to the slave. 

This will take extra logic, which is one of the main reasons AXI4-Lite exists. If it is added, the benefit of AXI4-Lite is removed.

That being said, it would be possible to implement it as a parameterizable feature (C_DISABLE_BURST_EXPANSION) that would be advertised by the slave, but that increases complexity.

AR# 50620
日期 05/09/2018
状态 Active
Type 综合文章
器件
Tools
IP