17
TR10a-LPQ User Manual
December
10,
2018
Figure 2-10 Four User LEDs
Table 2-5 User LEDs Pin Assignments, Schematic Signal Names, and Functions
Board
Reference
Schematic
Signal Name
Description
I/O
Standard
Arria 10 GX
Pin Number
LED0
LED0
Driving a logic 0 on the I/O port
turns the LED ON.
Driving a logic 1 on the I/O port
turns the LED OFF.
1.8-V
PIN_Y13
LED1
LED1
1.8-V
PIN_Y14
LED2
LED2
1.8-V
PIN_W11
LED3
LED3
1.8-V
PIN_V10
2.4
Temperature Sensor and Fan Control
The TR10a-LPQ has an automatic management system for the temperature of the
FPGA, the fan speed, and the power supply of the FPGA. As shown in
. The
MAX10 FPGA is the main control device on the board.
The temperature of the Arria 10 FPGA is obtained through the TMP441 temperature
sensor and the MAX10 FPGA can read it from TMP441 via I2C bus. The MAX10 FPGA
will adjust the fan speed automatically according to the temperature of the Arria 10
FPGA.
When the board power is on, the fan speed is preset to 3000 rpm. As the temperature