Download Triple-Speed Ethernet MegaCore Function User Guide

3-6
UG-01008
2015.06.15
PCS/Transceiver Options
Name
Export transceiver On/Off
powerdown signal
Value
Parameter
This option is not supported in Stratix V, Arria V,
Arria V GZ, and Cyclone V devices.
Turn on this option to export the powerdown signal of
the GX transceiver to the top-level of your design.
Powerdown is shared among the transceivers in a
quad. Therefore, turning on this option in multiport
Ethernet configurations maximizes efficient use of
transceivers within the quad.
Turn off this option to connect the powerdown signal
internally to the PCS control register interface. This
connection allows the host processor to control the
transceiver powerdown in your system.
Enable transceiver On/Off
dynamic reconfi‐
guration
This option is always turned on in devices other than
Arria GX and Stratix II GX. When this option is turned
on, the MegaCore function includes the dynamic
reconfiguration signals.
For designs targeting devices other than Arria V,
Cyclone V, Stratix V, and Arria 10, Altera recommends
that you instantiate the ALTGX_RECONFIG
megafunction and connect the megafunction to the
dynamic reconfiguration signals to enable offset
cancellation.
For Arria V, Cyclone V, and Stratix V designs, Altera
recommends that you instantiate the Transceiver
Reconfiguration Controller megafunction and connect
the megafunction to the dynamic reconfiguration
signals to enable offset cancellation. The transceivers in
the Arria V, Cyclone V, and Stratix V designs are
configured with Altera Custom PHY IP core. The
Custom PHY IP core require two reconfiguration
interfaces for external reconfiguration controller. For
more information on the reconfiguration interfaces
required, refer to the Altera Transceiver PHY IP Core
User Guide and the respective device handbook.
For more information about quad sharing considera‐
tions, refer to Sharing PLLs in Devices with GIGE
PHY on page 8-7 .
Altera Corporation
Parameter Settings
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