Hi, 
Can anybody suggest me some good reading regarding the FPGA architecture 
Internals of FPGA.
What is the Difference between Xilinx "Logic gates" & Altera's "Logi
Elements".
Thank you 



		
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> Can anybody suggest me some good reading regarding the FPGA architecture &
> Internals of FPGA.

The Design Warrior's Guide to FPGAs (0750676043) might be an interesting
read if you are completely new to FPGA technology. 

Cutting & pasting one of the reviews from amazon is faster then typing this
all myself :

	If you are expecting a book heavy on syntax and theory, hard to
	read, and full of tricky code, convoluted equations, and esoteric
	terms, then you are going to be disappointed. You will probably need
	to read books of that type at some time in the future, but they will
	not give you the global view that is mandatory to understand where
	you are, where you need to go, and how to get there.

	By comparison, "The Design Warrior's Guide to FPGAs" is more a
	matter of culture, of looking at the "big picture", and of
	understanding the "state of the art"...

	This book is a "page turner" that is easy to read, even for
	non-native readers. (the author - "Max" - even tells us how to
	pronounce industry-standard acronyms and how not to be embarrassed
	by saying words like "Linux" or "Fifo" the wrong way :-)

	But don't be fooled by this "easy" look : this book contains an
	incredible amount of clear and accurate information. It will provide
	you with a LOT of practical and useful knowledge.  It clearly
	explains, for example, what today's tools can do and how; such as
	what happens when you click on the "enable retiming" option in your
	favorite synthesis or P&R tool, or what "clock de-skewing" is all
	about.  The "Signal Integrity 101" appendix is another proof that
	complex things can be explained with (few) simple words.

	In just a few hours, this book will give you a culture and establish
	notions that would otherwise require many years of actual experience
	in the field.  It will help you understand the tools you are going
	to use, the technology behind the components, and what to expect.

	This book is definitely a must-read for "young" engineers (anyone
	with less than 5 years of intensive experience in FPGA or Asic
	design).  Having said this, the topics are so varied that even
	experienced hands will also benefit from this book. Our industry is
	moving so fast that one cannot pretend to know everything about
	everything... this book really covers a lot of ground and I found it
	interesting from cover to cover.

	The included CD-Rom has a computer-readable version of the book,
	which is a nice "plus".

	Last, but not least, the price is fair.

	I love this book and really wish that every engineer to whom I teach
	HDLs would read it.


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