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[/] [spi_master_slave/] [trunk/] [syn/] [spi_master.vhd] - Diff between revs 22 and 23

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--
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------------------------------ COPYRIGHT NOTICE -----------------------------------------------------------------------
------------------------------ COPYRIGHT NOTICE -----------------------------------------------------------------------
--                                                                   
--                                                                   
--      This file is part of the SPI MASTER/SLAVE INTERFACE project http://opencores.org/project,spi_master_slave
--      This file is part of the SPI MASTER/SLAVE INTERFACE project http://opencores.org/project,spi_master_slave
--                                                                   
--                                                                   
--      Author(s):      Jonny Doin, jdoin@opencores.org
--      Author(s):      Jonny Doin, jdoin@opencores.org, jonnydoin@gmail.com
--                                                                   
--                                                                   
--      Copyright (C) 2011 Authors and OPENCORES.ORG
--      Copyright (C) 2011 Jonny Doin
--      --------------------------------------------
--      -----------------------------
--                                                                   
--                                                                   
--      This source file may be used and distributed without restriction provided that this copyright statement is not    
--      This source file may be used and distributed without restriction provided that this copyright statement is not    
--      removed from the file and that any derivative work contains the original copyright notice and the associated 
--      removed from the file and that any derivative work contains the original copyright notice and the associated 
--      disclaimer. 
--      disclaimer. 
--                                                                   
--                                                                   
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--      This source is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
--      This source is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
--      warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more  
--      warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more  
--      details.
--      details.
--
--
--      You should have received a copy of the GNU Lesser General Public License along with this source; if not, download 
--      You should have received a copy of the GNU Lesser General Public License along with this source; if not, download 
--      it from http://www.opencores.org/lgpl.shtml
--      it from http://www.gnu.org/licenses/lgpl.txt
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--                                                                   
------------------------------ REVISION HISTORY -----------------------------------------------------------------------
------------------------------ REVISION HISTORY -----------------------------------------------------------------------
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--
-- 2011/04/28   v0.01.0010  [JD]    shifter implemented as a sequential process. timing problems and async issues in synthesis.
-- 2011/04/28   v0.01.0010  [JD]    shifter implemented as a sequential process. timing problems and async issues in synthesis.
-- 2011/05/01   v0.01.0030  [JD]    changed original shifter design to a fully pipelined RTL fsmd. solved all synthesis issues.
-- 2011/05/01   v0.01.0030  [JD]    changed original shifter design to a fully pipelined RTL fsmd. solved all synthesis issues.

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