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--
--  Xilinx, Inc. 2002                 www.xilinx.com
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--  XAPP 253 - Synthesizable DDR SDRAM Controller
--
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--  File name :       controller_iobs.vhd
--
--  Description :     
--                  All the IO's related to controller module are declared as
--                  IOBUF's in this module
--
--  Date - revision : 05/01/2002
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--  Author :          Lakshmi Gopalakrishnan ( Modified by Sailaja)
--
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