AHB和AXI的问题

yepizhou · 发表于 2008-12-1 08:50:07

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arm926EJ_S具有双AHB接口，而AXI总线则比AHB有更高的性能，但是AHB和AXI的总线接口并不一样。我想请问下，如果我们采用ARM926EJ_S作为cpu，那么我们能否用AXI作为系统总线？如果可以，那接口怎么设计？谢谢了！

不再回头 · 发表于 2009-11-2 09:18:49

可以设计一个ahb2axi桥连接上axi interconnect，不过需要考虑效率问题

hnulht789 · 发表于 2010-4-24 02:05:40

赞一个啊

hyperpicc · 发表于 2010-6-9 01:45:20

I think the most advantage of AXI is out-of-order completion. As you know, this allows a master (in your case is ARM926EJ-S) to access other slaves without waiting for responses from the slower slaves. In contrast, AHB have to end transactions in order.

Therefore, from this point of view, if ARM926EJ-S uses 2 AHB master ports, it is assumed that ARM926EJ-S have to access data in order, so I don't think maybe you cannot get such benefit as AXI out-of-order characteristics.

chwyjf · 发表于 2010-9-4 13:05:49

牛气，，，谢谢共享。。。。~~

nslnsl · 发表于 2010-10-3 14:59:27

强人！！！

willwillwill · 发表于 2010-10-31 08:06:16

慢慢了解一下了

jackbh851 · 发表于 2011-8-31 09:51:20

支持下，谢谢

信徒 · 发表于 2013-9-2 10:13:08

谢谢共享？哪来的资料？

wwjlisa · 发表于 2014-9-19 13:30:01

I think the most advantage of AXI is out-of-order completion. As you know, this allows a master (in ...
hyperpicc 发表于 2010-6-9 01:45

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Direct but clear explanation, thanks

AHB和AXI的问题

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