Cyclone V SoC FPGA Development Board Reference Manual - Altera

Chapter 2: Board Components 2–49Power SupplyPower SupplyTable 2–38 lists the I 2 C EEPROM pin assignments, signal names, and functions. Thesignal names and types are relative to the Cyclone V SoC in terms of I/O setting anddirection.Table 2–38. I 2 C EEPROM Schematic Signal Names and FunctionsBoardReference (U28)Schematic SignalNameCyclone V SoCPin NumberI/O Standard6 I2C_SCL_HPS D22 3.3-V HPS I 2 C serial clock5 I2C_SDA_HPS C23 3.3-V HPS I 2 C serial dataYou can power up the development board from a laptop-style DC power input orthrough the DC auxiliary connector. The Cyclone V SoC is designed in such way thatthe power rails for the HPS and FPGA are independent, allowing power down for theFPGA side when the HPS side is running. This eliminates power consumption on theFPGA part when not in use.Table 2–39 lists the maximum allowed draws of the power input.Table 2–39. Power Input Maximum Allowed DrawsSource Voltage (V) Wattage (W)16.0 200Laptop Supply—DC input20.0 200DC auxiliary connector 12.0 200DescriptionAn on-board multi-channel analog-to-digital converter (ADC) measures the currentfor several specific board rails.November 2013 Altera Corporation Cyclone V SoC Development BoardReference Manual