Altera Cyclone V SoC Development Board - Manual (Page 57)

Chapter 2: Board Components 2–49
Power Supply
November 2013 Altera Corporation Cyclone V SoC Development Board
Reference Manual
Table 2–38 lists the I 2 C EEPROM pin assignments, signal names, and functions. The
signal names and types are relative to the Cyclone V SoC in terms of I/O setting and
direction.
Power Supply
You can power up the development board from a laptop-style DC power input or
through the DC auxiliary connector. The Cyclone V SoC is designed in such way that
the power rails for the HPS and FPGA are independent, allowing power down for the
FPGA side when the HPS side is running. This eliminates power consumption on the
FPGA part when not in use.
Table 2–39 lists the maximum allowed draws of the power input.
An on-board multi-channel analog-to-digital converter (ADC) measures the current
for several specific board rails.
Table 2–38. I 2 C EEPROM Schematic Signal Names and Functions
Board
Reference (U28)
Schematic Signal
Name
Cyclone V SoC
Pin Number
I/O Standard Description
6 I2C_SCL_HPS D22 3.3-V HPS I 2 C serial clock
5 I2C_SDA_HPS C23 3.3-V HPS I 2 C serial data
Table 2–39. Power Input Maximum Allowed Draws
Source Voltage (V) Wattage (W)
Laptop Supply—DC input
16.0 200
20.0 200
DC auxiliary connector 12.0 200