Analog parameters set using qsf assignments, Making qsf assignments using the assignment editor, Analog parameters set using qsf assignments -1 – Altera Transceiver PHY IP Core User Manual
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Analog Parameters Set Using QSF Assignments
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You specify the analog parameters using the Quartus II Assignment Editor, the Pin Planner, or through
the Quartus II Settings File (.qsf). The default values for analog options fall into three categories:
• Global— These parameters have default values that are independent of other parameter settings.
• Computed—These parameters have an initial default value that is recomputed based on other
parameter settings.
• Proxy—These parameters have default values that are place holders. The Quartus II software selects
these initial default values based on your design; however, Altera recommends that you replace these
defaults with values that match your electrical board specification.
For more information about the Pin Planner, refer to About the Pin Planner in Quartus II Help. For more
information about the Assignment Editor, refer to About the Assignment Editor in Quartus II Help.
For more information about Quartus II Settings, refer to Quartus II Settings File Manual.
Related Information
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Making QSF Assignments Using the Assignment Editor
The Quartus II software provides default values for analog parameters. You can change the default values
using the Assignment Editor. For example, complete the following steps to specify a 3.0V supply for the
VCCA voltage and a 1.0V supply to the VCCR voltages.
1. On the Assignments menu, select Assignment Editor. The Assignment Editor appears.
2. Complete the following steps for each pin requiring the VCCA voltage:
a. Double-click in the Assignment Name column and scroll to the bottom of the available
assignments.
b. Select VCCA_GXB Voltage.
c. In the Value column, select 3_0V from the list.
3. Complete the following steps for each pin requiring the VCCR voltage:
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