Re: [pci] Can I remove modules,pins and wires related about PCI initiator and Wb_Slave?

["Miha Dolenc" <mihad@opencores.org>]

Well, we implemented both master and target interfaces and achieved a
frequency around 43MHz in Spartan2 -5. The speed also depends on core's
configuration - e.g. what type of ram is used, how many address lines you
want to decode etc.. I'm almost sure that full configuration ( 5 images with
20 address lines decoded with block rams ) won't achieve 33MHz in small and
slow FPGAs ( like Spartan ). You have to use some kind of tradeoff here.

Regards,
Miha Dolenc

----- Original Message -----
From: <DARRENTJEN@yeah.net>
To: <pci@opencores.org>
Sent: Thursday, April 11, 2002 4:53 AM
Subject: Re: [pci] Can I remove modules,pins and wires related about PCI
initiator and Wb_Slave?


>
>
> ﹛﹛you can remove the unnecessary modules from it.surely you will get
less gate count,but the circuit can't work under an satisfactory
frequency.it seems the reason is the path of control signals from pci target
to fifo, wbmaster and then from wbmaster to fifo ,pcitarget is too long.
>
>    what I do now is just similar to yours,and I think we can keep in touch
with each other.
>
> ======= 2002-04-10 18:39:00=======
>
> >Hi:
> >
> >   Because I need only PCI_Target and WB_Master,
> >   Can I remove uncessary parts such as modles,pins,wires related about
> >   PCI initiator and WB_Slave?
> >   This may reduce the gate count?
> >
> >  Thanks
> >
> >  T.M
> >
> >
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>
>                DARRENTJEN@YEAH.NET
> 2002-04-11
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