EP4CGX75DF27C7N Altera, EP4CGX75DF27C7N Datasheet - Page 253

• Manufacturer Part Number: EP4CGX75DF27C7N
• Description: Cyclone IV GX
• Manufacturer: Altera
• Series: CYCLONE® IV GXr

Specifications of EP4CGX75DF27C7N

• Number Of Logic Elements/cells: 73920
• Number Of Labs/clbs: 4620
• Total Ram Bits: 4257792
• Number Of I /o: 310
• Number Of Gates: -
• Voltage - Supply: 1.16 V ~ 1.24 V
• Mounting Type: *
• Operating Temperature: 0°C ~ 85°C
• Package / Case: *
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Chapter 9: SEU Mitigation in Cyclone IV Devices
Software Support
Software Support
© February 2010 Altera Corporation
Enabling the CRC error detection feature in the Quartus II software generates the
CRC_ERROR output to the optional dual purpose CRC_ERROR pin.
To enable the error detection feature using CRC, perform the following steps:
1. Open the Quartus II software and load a project using Cyclone IV devices.
2. On the Assignments menu, click Settings. The Settings dialog box appears.
3. In the Category list, select Device. The Device page appears.
4. Click Device and Pin Options. The Device and Pin Options dialog box appears as
5. In the Device and Pin Options dialog box, click the Error Detection CRC tab.
6. Turn on Enable error detection CRC.
7. In the Divide error check frequency by box, enter a valid divisor as documented
8. Click OK.
Figure 9–2. Enabling the Error Detection CRC Feature in the Quartus II Software
shown in
in
1
Table 9–5 on page
The divisor value divides the frequency of the configuration oscillator
output clock. This output clock is used as the clock source for the error
detection process.
Figure
9–2.
9–5.
Cyclone IV Device Handbook, Volume 1
9–7