ML505/ML506/ML507 Evaluation Platform www.xilinx.com 11
UG347 (v3.1.1) October 7, 2009
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Chapter 1
ML505/ML506/ML507 Evaluation 
Platform
Overview
ML505, ML506, and ML507 Evaluation Platforms (referred to as ML50x in this guide) 
enable designers to investigate and experiment with features of the Virtex-5 LXT, SXT, and 
FXT FPGAs. This user guide describes the features and operation of these platforms. 
Although the ML50x platforms provide access to the Virtex-5 FPGA RocketIO™ GTP and 
GTX transceivers, these boards are only intended for evaluation purposes, not for 
transceiver characterization. 
The ML505, ML506, and ML507 platforms use the same printed-circuit board (PCB). See 
Appendix A, “Board Revisions” for distinguishing characteristics. 
Features
• Xilinx Virtex-5 FPGA
♦ XC5VLX50T-1FFG1136 (ML505)
♦ XC5VSX50T-1FFG1136 (ML506)
♦ XC5VFX70T-1FFG1136 (ML507)
• Two Xilinx XCF32P Platform Flash PROMs (32 Mb each) for storing large device 
configurations
• Xilinx System ACE™ CompactFlash configuration controller with Type I 
CompactFlash connector
• Xilinx XC95144XL CPLD for glue logic
• 64-bit wide, 256-MB DDR2 small outline DIMM (SODIMM), compatible with EDK 
supported IP and software drivers
• Clocking
♦ Programmable system clock generator chip
♦ One open 3.3V clock oscillator socket
♦ External clocking via SMAs (two differential pairs)
• General purpose DIP switches (8), LEDs (8), pushbuttons, and rotary encoder
• Expansion header with 32 single-ended I/O, 16 LVDS-capable differential pairs, 
14 spare I/Os shared with buttons and LEDs, power, JTAG chain expansion 
capability, and IIC bus expansion
• Stereo AC97 audio codec with line-in, line-out, 50-mW headphone, microphone-in 
jacks, SPDIF digital audio jacks, and piezo audio transducer
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