Cyclone V Device Handbook: Volume 2: Transceivers

ID 683586
Date 10/24/2018
Document Table of Contents

3.7. Transceiver Power-Down

To maximize power savings, enable PMA hard power-down across all channels on a side of the device where you do not use the transceivers.

The hard power-down granularity control of the transceiver PMA is per side. To enable PMA hard power-down on the left or right side of the device, ground the transceiver power supply of the respective side.

VCCE_GXBL and VCCL_GXBL must be connected either to the required supply or to GND. The VCCH_GXBL pin must always be powered.