F-Tile Triple-Speed Ethernet Intel® FPGA IP User Guide
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3.4.1. Design Constraint File
The following table lists the recommended Quartus® Prime pin assignments that you can set in your design.
Pin Assignment | Assignment Value | Description | Design Pin |
---|---|---|---|
FAST_INPUT_REGISTER | ON | To optimize I/O timing for MII, GMII and TBI interface. | MII, GMII, RGMII, TBI input pins. |
FAST_OUTPUT_REGISTER | ON | To optimize I/O timing for MII, GMII and TBI interface. | MII, GMII, RGMII, TBI output pins. |
IO_STANDARD | High Speed Differential I/O | I/O standard for FGT serial input and output pins. |
FGT transceiver serial input and output pins. |
IO_STANDARD | LVDS | I/O standard for LVDS/IO serial input and output pins. | LVDS/IO transceiver serial input and output pins. |
GLOBAL_SIGNAL | Global clock | To assign clock signals to use the global clock network. Use this setting to guide the Quartus® Prime software in the fitter process for better timing closure. |
|
GLOBAL_SIGNAL | Regional clock | To assign clock signals to use the regional clock network. Use this setting to guide the Quartus® Prime software in the fitter process for better timing closure. |
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