gigabit transceiver block (GXB) Definition

Dedicated circuitry on supported device ( Arria^® series, Cyclone^® IV , Stratix^® IV GT, and Stratix^® IV GX) family devices that uses differential I/O standards and Clock Data Recovery (CDR) to send and receive data serially at a faster rate between devices.

This dedicated CDR circuitry enables supported device family devices to eliminate frequency barriers faced by source-synchronous systems, allowing for data transmission while correcting for clock skew.

You can take advantage of the GXB with the ALTGX megafunction.