高速 XC9500XL 设计计划 APPLICATION NOTE 0 Planning for High Speed XC9500XL Designs XAPP115 September 28, 1998 (Version 1.0) 0 1 Application Note Introduction Local Decoupling CPLD design has advanced signicantly beyond that of fast PAL design. Today's CPLDs must operate in systems that include microprocessors, memories, I/O devices, buses, multiple power supplies and multiple frequency clocks. The actual logic design is frequent……