Arria 10 GX Transceiver Signal Integrity Development Kit User Guide

ID 683553
Date 8/08/2017
Public
Document Table of Contents

5.12.3. Temperature Sense

Temperature monitoring will be done by a MAX1619 dual temperature sense device. This device will allow temperature sensing of both the Intel® Arria® 10 GX FPGA die and board ambient. The MAX1619 is connected to the Intel® Arria® 10 GX FPGA by a 2-wire SMBus interface. Additionally, the OverTemp (OTn) and ALERTn signals from the MAX1619 is brought to the MAX V device to allow it to immediately sense a temperature fault condition and turn on the Intel® Arria® 10 GX FPGA's attached FAN.

An over temperature warning LED (amber-colored) is provided for the Intel® Arria® 10 GX FPGA device. This LED will indicate the temperature fault condition and that the FAN should be connected and running. The fan will be controlled by the OverTemp signal from the MAX1619 and can be set to turn on when the Arria 10 GX FPGA die temperature exceeds a specified set point. Temperature fault set points can be programmed into the MAX1619. The HDL design code along with .sof/.pof files are provided to the user.

Figure 13. Temperature Measurement Circuit