Glossary

I/O Standard logic option


A logic option that specifies the I/O standard of a pin. Different device families support different I/O standards, and restrictions apply to placing pins with different I/O standards together. For detailed information, refer to the device family data sheet and to Application Note 117 (Using Selectable I/O Standards in Altera® Devices).

This option is ignored if it is applied to anything other than a pin or a top-level design entity. This option is available for APEX 20K, ARM®-based Excalibur, and Mercury devices only.

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