Stratix V Device Handbook: Volume 2: Transceivers

ID 683779
Date 11/23/2021
Document Table of Contents Quartus II Software-Selected Receiver Datapath Interface Clock

The Quartus II software automatically picks the appropriate clock from the FPGA fabric to clock the receiver datapath interface.
Figure 74.  Receiver Datapath Interface Clocking for Non-Bonded ChannelsThe figure shows the receiver datapath interface of two non-bonded channels that are clocked by their respective receiver PCS clocks and forwarded to the FPGA fabric.

Note: The FPGA fabric-transceiver interface clocking for GT receiver channels is similar to the non-bonded GX receiver channel FPGA fabric-transceiver interface clocking.
Figure 75. Receiver Datapath Interface Clocking for Three Bonded ChannelsThe following figure shows the receiver datapath interface of three bonded channels clocked by the tx_clkout[0] clock. The tx_clkout[0] clock is derived from the central clock divider of channel 1 or 4 in a transceiver bank.