to view the  PDF files below.

ISDN Documentation ISDN Modems White Paper  Digital Modems White Paper  ISDN Modems Application Note
Spartan Product Information  Spartan-II Product Overview Spartan Series Overview  SpartanXL Product Overview  ASIC Replacement FPGAs  Spartan Series Application Notes Spartan Datasheets  Spartan-II SpartanXL Spartan-II Application Notes	XC9500 Product Information  XC9500 Product Overview  XC9500XL Product Overview  XC9500XV Product Overview  XC9500 Series Application Notes  XC9500 Series Datasheets  WebFITTER

ISDN Market Overview	ISDN Glossary
ISDN Documentation	Xilinx at Work