Xilinx ML50 Series User Manual

ML501 Evaluation Platform www.xilinx.com 31UG226 (v1.3) November 10, 2008Detailed DescriptionR26. AC Adapter and Input Power Switch/JackThe ML501 board ships with a 15W (5V @ 3A) AC adapter. The power connector is a2.1 mm x 5.5 mm barrel type plug (center positive). For applications requiring additionalpower, such as the use of expansion cards drawing significant power, a larger AC adaptermight be required. If a different AC adapter is used, its load regulation should be less than10% or better than ±10%. The power switch turns the board on and off by controlling the5V supply to the board27. Power Indicator LEDThe PWR Good LED lights when the 5V supply is applied.28. INIT LEDThe INIT LED lights upon power-up to indicate that the FPGA has successfully poweredup and completed its internal power-on process.29. DONE LEDThe DONE LED indicates the status of the DONE pin on the FPGA. It should be lightedwhen the FPGA is successfully configured.30. Program SwitchThis switch grounds the FPGA's Prog pin when pressed. This action clears the FPGA.Figure 1-4: Power Supply DiagramUG226_04_080906PT Host 240W10A Switching RegulatorPT Host 230W6A Switching RegulatorPT Host 230W6A Switching RegulatorTPS744013A LDO5V Brick3A2.5VTo VCCAUXTPS744013A LDO2.5VTo FPGA I/OTo FPGA I/OTPS511003A LDO0.9VTo VTTVREFTPS511003A LDO0.9VTo VTT3.3V5V1.8VTo PROMTo DDR2 SO-DIMM1.0VTo FPGA CoreTo USB and PS/2