From: "Dave Brown" <dbrown@novatel.ca>
Newsgroups: comp.arch.fpga
Subject: CTL Register in Virtex-E Configuration
Date: Mon, 1 Oct 2001 17:07:18 -0600
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I was reading XAPP151 and noticed that it said for Virtex devices, bit 2 of
the CTL regsiter must be zero. Is this also the case for Virtex E devices? I
have a .bit file for a Virtex E that has a 1 in bit 2 of the CTL register,
and as it happens, we can't get this device to configure. Do I need to have
a zero there?
Thanks,
Dave

######

From: Austin Lesea <austin.lesea@xilinx.com>
Newsgroups: comp.arch.fpga
Subject: Re: CTL Register in Virtex-E Configuration
Date: Mon, 01 Oct 2001 16:39:42 -0700
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Dave,

It is my understanding that the only change from Virtex to Virtex E in
configuration was the longer frame size to accomodate the extra memory bits.

Control, etc. all remained identical.

Austin

Dave Brown wrote:

> I was reading XAPP151 and noticed that it said for Virtex devices, bit 2 of
> the CTL regsiter must be zero. Is this also the case for Virtex E devices? I
> have a .bit file for a Virtex E that has a 1 in bit 2 of the CTL register,
> and as it happens, we can't get this device to configure. Do I need to have
> a zero there?
> Thanks,
> Dave