9.7.5 Placement DRC Rules

The I/O Editor enforces the DRC rules when Transceivers are placed. Any illegal connection is highlighted as a red line in the Placement View and a corresponding message is displayed in the Log window.

Lane assignments are always legal. DRC rules are enforced for the following:

• Connection from Transmit PLL (TXPLL) to the Lanes
• Connection from the Reference Clock (REFCLK) to the Transmit PLL (TXPLL)
• Connection from the Reference Clock (REFCLK) to the Lanes