Cyclone V Device Handbook: Volume 2: Transceivers

ID 683586
Date 10/24/2018
Document Table of Contents Programmable Receiver VCM

The receiver buffers have on-chip biasing circuitry to establish the required VCM at the receiver input. The circuitry supports a VCM setting of 0.8 V.

On-chip biasing circuitry is available only if you select one of the termination logic options in order to configure OCT. If you select external termination, you must implement off-chip biasing circuitry to establish VCM at the receiver input buffer.