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the assembly variants and MGT connectivity.
Signal Name
Signal Description
Pairs
I/O Bank
MGT_B228_RX<...>
MGT receivers
4
228
MGT_B228_TX<...>
MGT transmitters
4
MGT_B228_REFCLK<...>
MGT reference input clocks
2
MGT_B229_RX<...>
MGT receivers
4
229
MGT_B229_TX<...>
MGT transmitters
4
MGT_B229_REFCLK<...>
MGT reference input clocks
2
MGT_B230_RX<...>
MGT receivers
4
230
MGT_B230_TX<...>
MGT transmitters
4
MGT_B230_REFCLK<...>
MGT reference input clocks
2
MGT_B128_RX<...>
MGT receivers
4
128
MGT_B128_TX<...>
MGT transmitters
4
MGT_B128_REFCLK<...>
MGT reference input clocks
2
Total
30 (40 on “G1” assembly variants)
Table 13: MGT Pairs
Eight of the GTH pairs and four corresponding clocks are routed to module connector C, while four GTH
pairs and two reference input clock differential pairs are routed to module connector B. On “G1” assembly
variant, four additional GTH pairs may be routed to module connector C - refer to Section 2.9.2 for details.
The GTH MGTs on the MPSoC device support data rates of 12.5 Gbit/sec on speedgrade 1 devices and of
16.375 Gbit/sec on the other devices. Note that the maximum bandwidth is limited to 15 Gbit/sec by the
module connector.
GTR Transceivers
There are four GTR MGT pairs and two reference input clock differential pairs on the XU1 SoC
module connected to I/O bank 505; these are routed to module connector B.
The naming convention for the GTR MGT I/Os is:
MGTPS_<FUNCTION>_<PACKAGE_PIN>_<POLARITY>.
For example, MGTPS_RX2_M30_N is located on pin M30 of PS GTR bank (bank 505), it is a receive pin and
it has negative polarity.
All XU1 SoC module variants support the implementation of a PCIe Gen2
×
4 interface.
Please note that when the PCIe hard block is used, it is not possible to use the Ethernet 0 interface. Ether-
net PHY 0 is connected to ETH 0 controller from the PS I/O bank 501; one of the Ethernet TX data signals
is shared with the PCIe reset signal (PERST#). Refer to Sections 2.9.2 and 2.9.7 for details on the PERST#
9
“G1” assembly option available starting with revision 3.
D-0000-428-001
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Version 13, 15.08.2019