Adding PLB Module to AMBA

[Paul Ranger]

Hi all,

Hope this here is the right newsgroup: I have a SoC with an AMBA bus but
now I have to add a module that has an PLB interface. So I am wondering
if anyone did this in the past and can tell me what is the best
approach. Is there maybe something like a "tutorial" where I am
told which PLB signals map to which AMBA signals?

Many thanks,
Paul

 

[Paul Ranger]

Hi Steve,

I hadn't heard of PLB before, I assume it's the powerPC
Processor Local Bus?

Yes, exactly. This is the one I am talking about.

Also, AMBA is a suite of protocols, you need to specify which AMBA bus
you are working with: APB, AHB, AXI

Preferably, I connect it to the AHB bus, but for a start also the APB
bus would be an option just to get it working.

In any case, they are different protocols so the signals don't map,
you'll need a bridge to connect the two.

Yes, I am aware that I have to adapt this implementation somehow. I have
an okay understanding of the AMBA bus, but did not check in detail the
PLB. Is there maybe such a bridging interface available anywhere? Or
does someone know a module with wrappers for AHB and PLB, maybe I could
use then a similar approach.

Thanks,
Paul

 

[steve ravet]

Hi Paul, I hadn't heard of PLB before, I assume it's the powerPC
Processor Local Bus?

Also, AMBA is a suite of protocols, you need to specify which AMBA bus
you are working with: APB, AHB, AXI

In any case, they are different protocols so the signals don't map,
you'll need a bridge to connect the two.

--steve

On Sep 27, 5:13 pm, Paul Ranger <Paul_nos...@hotmail.com> wrote:

Hi all,

Hope this here is the right newsgroup: I have a SoC with an AMBA bus but
now I have to add a module that has an PLB interface. So I am wondering
if anyone did this in the past and can tell me what is the best
approach. Is there maybe something like a "tutorial" where I am
told which PLB signals map to which AMBA signals?

Many thanks,
Paul