Xilinx Virtex2 tristate support

[Vivek]

Hi,

Does anybody know, whether Xilinx Virtex2 FPGA supports internal tristate?
(the tristate that can't be pushed towards the interface or pins).

Thanks in advance,

Vivek

 

[Uwe Bonnes]

Vivek <viveklk@hotmail.com> wrote:
: Hi,

: Does anybody know, whether Xilinx Virtex2 FPGA supports internal tristate?
: (the tristate that can't be pushed towards the interface or pins).

Look for TBUFs
--
Uwe Bonnes bon@elektron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------

 

[John_H]

"yes"

I opened the Virtex-II datasheet (Functional Description) and the info was
RIGHT THERE in the bookmarks, "3-State Buffers."


"Vivek" <viveklk@hotmail.com> wrote in message
news:a5bfe71f.0311130424.5dd09bfb@posting.google.com...

Hi,

Does anybody know, whether Xilinx Virtex2 FPGA supports internal tristate?
(the tristate that can't be pushed towards the interface or pins).

Thanks in advance,

Vivek

 

[Peter Alfke]

Virtex-II supports "TBUFs", which behave like the tristate drivers on
Longlines of the olden days. In physical implementation they actually
are Mux structures that avoid the slowness of the classical TBUFs.
So you could say that they are "virtual TBUFs".
PeterAlfke
================
Vivek wrote:

Hi,

Does anybody know, whether Xilinx Virtex2 FPGA supports internal tristate?
(the tristate that can't be pushed towards the interface or pins).

Thanks in advance,

Vivek