Altera Stratix GX Transceiver - Manual (Page 174)

6–20 Altera Corporation
Stratix GX Transceiver User Guide January 2005
GigE Mode Clocking
GigE Mode
Clocking GigE Mode Channel Clocking
This section describes the details of clocking the transceiver, the internal
clocking details, and the external clock ports in GigE mode. Each block
diagram shows the input and output port clocks. The MegaWizard
Plug-In Manager by default selects a set of clocks for transmitters and
receivers in a transceiver when GigE mode is selected. The wizard also
offers clock options, other than default, to facilitate your clocking
schemes.
Figure 6–21. Default Configuration of altgxb Megafunction in GigE Mode