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Message
From: vsatt0@e...
Date: Thu, 18 Sep 2003 13:57:31 -0400
Subject: [pci] Re: question regarding interfacing of pci and ethernet mac
Hi,
Thanx a ton for Your time. I figured out how to connect the all the Ethernet
MAC wishbone master and slave signals to the Pci bridge slave and master signals.
The signals on the PCI bridge Master and Slave which are left are given below.
Here are the signals
Pci bridge Wishbone Master signals
output [31:0] ADR_O;
input [31:0] MDAT_I;
output [31:0] MDAT_O;
output [2:0] CTI_O;
output [1:0] BTE_O;
input RTY_I;
Pci bridge Wishbone Slave Signals
input CAB_I;
input [2;0] CTI_I;
input [1:0] BTE_I;
output RTY_O;
There are these Wishbone common signals on the PCI side and Ethernet MAC side. I
think we should connect both of them.
So i connected wishbone clk and rst signals on either side. But again there are
few left out signals
They are given below
Ethernet MAC side Wishobne common signals left out
input [31:0] wb_dat_i;
output [31:0] wb_dat_o;
output wb_err_o;
Pci bridge wishbone common signals left out are
output RST_O;
input INT_I;
output INT_O;
If you could tell me what to do with these signals i would be thankful to you
Thanking you
Vikram
Quoting Miha Dolenc <mihad@o...>:
> Hi!
>
> Sorry for the delay.
>
> You are right - you must connect PCI's WISHBONE Master to
> ethernet's WISHBONE slave and ethernet's WISHBONE Master to PCI's WISHBONE
> Slave.
>
> Please list the signals you are not sure about, so I can tell you what to do
> with each one of them.
>
> Regards,
> Miha Dolenc
>
>
> ----- Original Message -----
> From: <vsatt0@e...>
> To: <mihad@o...>
> Cc: <tadej@o...>
> Sent: Wednesday, September 17, 2003 7:36 PM
> Subject: question regarding interfacing of pci and ethernet mac
>
>
> > Hi,
> >
> > Sorry to bother u again.I have subscribed to the PCI mailing list and
> i have
> > posted my question there. I havn't heard anything back from anyone yet so
> i am
> > writing this to u again.
> >
> > I am trying to connect PCI bridge wishbone to Ethernet MAC wishbone.
> Both
> > these projects have wishbone master and slave.
> >
> > I think I should connect Wishbone Master signals on the PCI side to
> the
> > Wishbone slave signals on the Ethernet 10/100 MAC and wishbone master
> signals on
> > the Ethernet 10/100 MAC side to the Wishbone Slave signals on the PCI
> side.
> >
> > But then there are few extra PCI slave and master signals. What do i
> need to
> > do with those signals.
> >
> > And there are these wishbone common signals on both sides. I think i
> need to
> > connect both of them. But then i am not sure.
> >
> > I read the pdf document on the wishbone which is in u r website.
> >
> > I would really appreciate if u can take time and help me with this.
> >
> > Thanking You
> >
> > Vikram
>
>
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