Xtensa 9 or Xtensa LX4?

Product Briefs

Xtensa 9 Product Brief

Xtensa LX4 Product Brief

White Papers

10 Tips for Successful SOC Design

Everything You wanted to Know About SOC Memory* But were Afraid to Ask

Boost ASIC and SOC Performance by Matching Processor to Task Through Automated Processor Generation

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Which is Best for Your Application - Xtensa 9 or Xtensa LX4?

Xtensa 9 and Xtensa LX4 are built on the same basic code base. They use the same tools and processor generator. And our Diamond Standard processors are just Xtensa processors that we've pre-configured for you to make your life easier - and they're all based on the Xtensa architecture.

Xtensa LX4 is a super-set of all Xtensa 9 features. The Diamond Standard processors are built on either Xtensa 9 or Xtensa LX4

So, what is the difference between Xtensa 9 and Xtensa LX43? Xtensa LX4 has some very powerful features that you may or may not need in your design:

Comparison

*Both processors have the GPIO32 option (two 32-wire ports) and the QIF32 option (two 32-bit queue interfaces).