Altera Interlaken MegaCore Function - Manual (Page 23)

June 2012 Altera Corporation Interlaken MegaCore Function
User Guide
3. Parameter Settings
Customize the Interlaken MegaCore function by specifying parameters in the
Interlaken parameter editor, which you access from the MegaWizard Plug-In Manager
or from the Qsys tool in the Quartus II software.
This chapter describes the parameters and how they affect the behavior of the
MegaCore function. To customize your Interlaken MegaCore function, you can
modify parameters to specify the following properties:
■ Operational mode
■ Number of lanes
■ Lane rate
■ Meta frame length
■ Whether the MegaCore function includes or excludes the transceiver
■ Whether the MegaCore function enables out-of-band flow control
■ Number of pages of in-band flow control calendar bits
■ Whether the BurstMax and BurstShort parameters are dynamically configurable
■ BurstMax value, if not dynamically configurable
■ BurstShort value, in variations with a datapath width of 512 bits, if not
dynamically configurable
General Parameters
This section lists the basic parameters that affect the configuration of the Interlaken
MegaCore function.
Operational Mode
The Operational mode parameter specifies whether the MegaCore function is
configured to support simultaneous bidirectional communication. The operational
mode with simultaneous bidirectional communication is called duplex mode. The
current version of the MegaCore function supports only Duplex mode.
Number of Lanes
The Number of lanes parameter specifies the number of lanes available for Interlaken
communication. Supported values are 4, 8, 10, 12, and 20.