描述：* Second generation ASIC replacement technology * Densities as high as 5,292 logic cells with up to 200,000 system gates * Streamlined features based on Virtex? FPGA architecture * Unlimited reprogrammability * Very low cost * Cost-effective 0.18 micron process * System level features * SelectRAM? hierarchical memory: · 16 bits/LUT distributed RAM · Configurable 4K bit block RAM · Fast interfaces to external RAM * Fully PCI compliant * Low-power segmented routing architecture * Full readback ability for verification/observability * Dedicated carry logic for high-speed arithmetic * Efficient multiplier support * Cascade chain for wide-input functions * Abundant registers/latches with enable, set, reset * Four dedicated DLLs for advanced clock control * Four primary low-skew global clock distribution nets * IEEE 1149.1 compatible boundary scan logic * Versatile I/O and packaging * Pb-free package options * Low-cost packages available in all densities * Family footprint compatibility in common packages * 16 high-performance interface standards * Hot swap Compact PCI friendly * Zero hold time simplifies system timing * Core logic powered at 2.5V and I/Os powered at 1.5V, 2.5V, or 3.3V * Fully supported by powerful Xilinx? ISE? development system * Fully automatic mapping, placement, and routing