About using XIO2001 to build a bridge!

Allen Lee

Other Parts Discussed in Thread: XIO2001

Dear all.

I intend to design a system using a SoC and Ti's DSP(C667x).There needs a plenty of data transfer between the two.

The SoC only supports PCI 2.3 which is fit for the high bandwidth,and the DSP supports PCIe x1.I found the XIO2001 may be suitable to make the role.

But I'm not familiar with the protocol of PCI or PCIe. So if I want to make the SoC(PCI end) as the Host and DSP(PCIe end) as Target, all access action is initiated by the PCI end.Could it be ok for the XIO2001 to act as the bridge in this situation?

Thanks for all answer.

Allen

over 14 years ago

0 DHarmon over 14 years ago

TI__Genius 16610 points

Allen,

What you describe is what is referred to as a reverse bridge application, where the "host" is PCI and the "target" is PCIe. The XIO2001 can NOT be used as a reverse bridge, it is only a "forward" bridge. Further TI doe snot have any bridges that can be used in reverse applications.

0 Allen Lee over 14 years ago in reply to DHarmon

Genius 3770 points

Hi,DHarmon

Thanks for the answer.

But I found the similar problem in E2E:

http://e2e.ti.com/support/interface/digital_interface/f/130/p/35620/125399.aspx#125399

You answered the problem with "The XIO2001 (nor its predessors - XIO2000x) support reverse bridging."

Is there some difference between the two situation?

BR!

Allen

0 DHarmon over 14 years ago in reply to Allen Lee

TI__Genius 16610 points

I left out the 'do not' in the other thread - I have corrected it - thanks for catching that.

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About using XIO2001 to build a bridge!