ALTERA DOES NOT WARRANT THAT THE FUNCTIONS CONTAINED IN THIS PATCH 
WILL MEET YOUR REQUIREMENTS, OR THAT THE OPERATION OF THIS PATCH 
WILL BE UNINTERRUPTED OR ERROR-FREE. 

//**************************************************************** 
readme_patch_9.0_2.54.txt 
Readme file for Quartus II 9.0 Patch 2.54 
Copyright (C) Altera Corporation 2009 All right reserved. 
Patch created on August 21 2009
Patch SPR#: 319287 
SPRs fixed: 317326
//**************************************************************** 

Problem: 
	There is a problem in glitch-free setting in altclkbuf megafunction. 


Solution: 
	This patch fixes above problem. 


Caution - You must either have previously installed the Quartus II 
          software version 9.0 SP2 or must install the Quartus II 
          software version 9.0 SP2 before installing this patch. 
          Otherwise, the patch will not be installed correctly and 
          the Quartus II software will not run properly.