Altera Arria V SoC Development Board Manual do Utilizador descarregar pdf (Página 63)

Chapter 2: Board Components 2–55

Power Supply

July 2014 Altera Corporation Arria V SoC Development Board

Reference Manual

Power Measurement

There are eleven power supply rails that have on-board current sense capabilities

using 16-bit differential ADC devices. Precision sense resistors split the ADC devices

and rails from the primary supply plane for the ADC to measure current.

Figure 2–10 shows the block diagram for the power measurement circuitry.

Table 2–35 lists the targeted rails. The schematic signal name column specifies the

name of the rail being measured while the device pin column specifies the devices

attached to the rail.

Figure 2–10. Power Measurement Circuit

SCK

SPI Bus

DSI

DSO

CSn

8 Ch.

Power Supply Load #0-6

SENSE

MAX V CPLD

5M2210

System

Controller

Arria V SoC

To User PC

JTAG Chain

Feedback

14-pin

2x16

Character

LCD

D(0:7)

Supply

#0-6

EPM570

USB

PHY

Embedded

USB-Blaster II

Table 2–35. Power Measurement Rails (Part 1 of 2)

Channel Schematic Signal Name Voltage (V) Device Pin Description

2.5V_FPGA

2.5

VCCIO

I/O, FPGA internal and peripheral devices VCCPD

VCC

1.5V_FPGA

1.5 VCCIO I/O and DDR3 devices

1.15V_VCC

1.15 VCC FPGA core power, transceiver, and clock

VAR_VCCIO

2.5, 1.8, 1.5,

1.2

VCCIO FMC I/O

1.15V_GXB

1.15

VCCR_GXB Receiver power

VCCL_GXB Transceiver clock network

1.15V_VCCT

1.15 VCCT_GXB Transmitter power

1.5V_VCCD/VCCH

1.5

VCCD_FPLL Phase-locked loop (PLL) digital power

VCCH_GXB Transmitter output buffer power

1.15V_HPS

1.15 VCC_HPS HPS core power

1.5V_HPS

1.5 VCCIO_HPS I/O and DDR3 devices

1 2 ... 58 59 60 61 62 63 64 65 66 67 68 69 70

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