Altera OCT User Manual
Altera oct megafunction user guide, Migrating your altoct megafunction
Altera OCT Megafunction User Guide
2013.11.29
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Altera On-Chip Termination (Altera OCT) allows you to dynamically calibrate I/O with reference to an
external resistor. The Altera OCT megafunction improves signal integrity, reduces board space and is
necessary for communicating with external devices such as memory interfaces.
The Altera OCT megafunction is available for Arria
®
10 devices only. For Arria V, Cyclone
®
V, and Stratix
®
V devices, follow the steps in
Migrating Your ALTOCT Megafunction
on page 1 to migrate your
megafunction.
Related Information
•
•
IP Migration Flow for Arria V, Cyclone V, and Stratix V Devices
The IP migration flow allows you to migrate the ALTOCT megafunction of Arria V, Cyclone V, and Stratix
V devices to the Altera OCT megafunction of Arria 10 devices.
The IP migration flow configures the Altera OCT megafunction to match the settings of the ALTOCT
megafunction, allowing you to regenerate the megafunction.
This megafunction only support the IP migration flow in single OCT calibration mode. If you are
using double or POD calibration mode, you do not need to migrate the megafunction.
Note:
Migrating Your ALTOCT Megafunction
To migrate your ALTOCT megafunction, follow these steps:
1. Open your ALTOCT megafunction in the MegaWizard Plug-In Manager.
2. In the Currently selected device family, select Arria 10.
3. Click Finish to open the Altera OCT megafunction in the MegaWizard Plug-In Manager. The MegaWizard
Plug-In Manager configures the Altera OCT megafunction settings similar to the ALTOCT megafunction
settings.
4. If there are any incompatible settings between the two, select new supported settings.
5. Click Finish to regenerate the megafunction.
6. Replace your ALTOCT megafunction instantiation in RTL with the Altera OCT megafunction.
The Altera OCT megafunction port names may not match the ALTOCT megafunction port names,
so simply changing the megafunction name in the instantiation is not sufficient.
Note:
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.
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