Altera Stratix GX Transceiver - Manual (Page 75)

Altera Corporation 3–29
January 2005 Stratix GX Transceiver User Guide
Basic Mode
Basic Mode
MegaWizard
Plug-In Altera recommends that the Stratix GX transceiver block be instantiated
and parameterized through the altgxb megafunction in the
MegaWizard Plug-In Manager. The MegaWizard Plug-In Manager offers
a graphical user interface (GUI) that organizes the altgxb options into
easy-to-use sections. The wizard also sets the proper ports and
parameters automatically, based on the options and parameters you
select. Invalid settings are automatically flagged in the wizard to help
prevent illegal configurations. The MegaWizard Plug-In Manager does
not provide access to any options that do not apply to basic mode.
Basic Mode MegaWizard Plug-In Manager Considerations
Each altgxb megafunction instantiation uses one or more transceiver
blocks, based on the number of channels that you select. There are four
channels per transceiver block. If a MegaWizard Plug-In Manager
instantiation uses fewer than four channels, the remaining channels in
that transceiver block are not available for use.
Each MegaWizard Plug-In Manager instantiation must have similar
functionality and data rates. If transceiver blocks that differ in
functionality and/or data rates are required, you can create separate
instantiations for each transceiver block.
As mentioned in the clocking section, the MegaWizard Plug-In Manager
displays the configuration of the altgxb megafunction. This diagram
changes dynamically based on the selected mode, options and clocking
schemes.
Basic Mode altgxb MegaWizard Options
Figure 3–25 through 3–31 show where you select the options for a basic
mode configuration in the MegaWizard Plug-In Manager pages.