Altera GPIO User Manual

Altera gpio ip core user guide, Ip migration for arria v, cyclone v, and stratix v

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Altera GPIO IP Core User Guide

2014.08.18

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The Altera GPIO megafunction IP core supports General Purpose I/O (GPIO) components and features.

GPIOs are I/Os used in general applications not specific to transceivers, memory-like interfaces or LVDS.
The Altera GPIO IP core features the following components:
• Double data rate input/output (DDIO)—A digital component that doubles, or halves the data-rate of a

communication channel.

• Delay chains— configure the delay chains to perform specific delay and assist in I/O timing closure.

• I/O buffers—connect the pads to the FPGA.
Note: The actual implementations and features of DDIO, delay chains, and I/O buffers vary from family

to family.

The Altera GPIO IP core is only available for Arria 10 devices. For Arria V, Cyclone V, and Stratix V

devices, follow the steps in

IP Migration for Arria V, Cyclone V, and Stratix V

on page 1 to migrate

your IP.

Related Information

Double Data Rate I/O (ALTDDIO_IN, ALTDDIO_OUT, and ALTDDIO_BIDIR) Megafunctions

User Guide

I/O Buffer (ALTIOBUF) Megafunction User Guide

IP Migration for Arria V, Cyclone V, and Stratix V

The Altera GPIO IP core supports the IP migration flow which allows you to migrate your Arria V,

Cyclone V, and Stratix V devices IP into the Altera GPIO IP core in Arria 10 devices.
This IP migration flow configures the new IP to match the settings of the old one and allow you to

regenerate. Some IP cores only support this migration in specific modes.
If your IP core is in a mode that is not supported, you may need to run the Altera GPIO IP Parameter

Editor and configure it manually.

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of its semiconductor products to current specifications in accordance with Altera's standard warranty, but reserves the right to make changes to any

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product, or service described herein except as expressly agreed to in writing by Altera. Altera customers are advised to obtain the latest version of device

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