Specifications

50 Altera Corporation
EPXA1 Development Board Hardware Reference Manual
Environmental Requirements
The development board must be stored between –40 °C and 100 °C.
Operating Requirements
Operating temperatures must be between 0 °C and 55 °C.
Unused I/O Pins
Damage could result to the EPXA1 device, if all unused I/O pins are not
set to tri-state mode in the Quartus II software.
To set the unused I/O pins to tri-state mode, run the Quartus II software,
open the appropriate project, and follow the steps below:
1. Choose Compile Mode (Processing menu).
2. Choose Compiler Settings (Processing menu).
3. Click the Chips & Devices tab.
4. Click Device & Pin Options.
5. Click the Unused Pins tab.
6. Select As inputs, tri-stated.
7. Click Apply.