Xilinx Virtex UltraScale+ FPGAs User Manual page 8

IBUFDS_GTM /
OBUFDS_GTM
The GTM_DUAL primitive contains one LCPLL and two GTM channels. Contrary to other
UltraScale+ device transceivers such as the GTH and GTY transceivers, the GTM transceiver
does not contain channel/common primitives. All channel ports and attributes are within the
GTM_DUAL primitive. The following figure illustrates the topology of a GTM channel.
UG581 (v1.0) January 4, 2019
Virtex UltraScale+ GTM Transceivers
GTM Dual Configuration
Figure 1:
REFCLK
Distribution
Chapter 1: Transceiver and Tool Overview
GTM_DUAL
LCPLL
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GTM Channel 0 (CH0)
TX
RX
GTM Channel 1 (CH1)
TX
RX
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