The AMD UltraScale+™ and AMD Versal™ transceivers are high-speed serial I/O blocks integrate AMD adaptive devices. These transceivers enable the adaptive SoC to communicate with external devices at very high data rates, typically in the range of several gigabits per second.
In Versal devices, hard IP block selection is dissociated from GT page to Hard IP Blocks pages. Hard IPs should be configured on Hard IP Blocks page in Versal adaptive SoC.
GTY
The Versal adaptive SoC GTY supports continuous data rate from 1.2 Gb/s to 32.75 Gb/s. Versal GTY page has few differences when compared to previous device families.
The following Versal device clock sources are different:
- LCPLL
- LC-tank based VCO for low jitter, supports maximum data rates.
- RPLL
- Ring-oscillator based, slightly lower power, lower data rates.Note: It is recommended to use Add GTY interface or Manage IP to enter a GTY configuration for a desired protocol, so that all columns are correctly specified. Versal devices include the following changes to the GTY configuration.
Table 1. Transceiver Power Estimation (GTY) Source UltraScale+ Device Versal Device LCPLL QPLL (shared to four channels) LCPLL (shared to two channels) Debug Eyescan Not currently supported Ring PLL CPLL RPLL Ethernet MAC CMAC MRMAC
GTYP
GTYP available in Versal adaptive SoC devices. GTYP is a superset of GTY in every way, including IP and pin compatibility. It is an upgraded version of GTY that supports PCIe® Gen5. For more information on GTYP, see Versal Adaptive SoC GTY and GTYP Transceivers Architecture Manual (AM002).
GTM
GTM is a high speed serial transceiver available for Versal adaptive SoC and a few Virtex UltraScale+ devices and it supports PAM4 and NRZ signaling.
Versal adaptive SoC GTM supports non-continuous data rates between 9.5 Gb/s to 116 Gb/s. For more information, see Versal Adaptive SoC GTM Transceivers Architecture Manual (AM017).
Virtex UltraScale+ supports highest data rate of 58 Gb/s and lowest data rate supported is 9.8 Gb/s. For more information about how to use GTM in Virtex UltraScale+, see Virtex UltraScale+ FPGAs GTM Transceivers User Guide (UG581).
GTH
The GTH transceivers are available in UltraScale+ devices. GTH is power-efficient transceivers, supporting line rates from 500 Mb/s to 16.375 Gb/s. For more information, refer to UltraScale Architecture GTH Transceivers User Guide (UG576).