P0059 Terasic Technologies Inc, P0059 Datasheet - Page 109

• Manufacturer Part Number: P0059
• Description: DE2-115 EVAL BOARD
• Manufacturer: Terasic Technologies Inc
• Series: Cyclone® IVr
• Type: FPGAr

Specifications of P0059

• Contents: Board, Cables, CD, DVD, Power Adapter, Remote Controller
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: EP4CE115

Figure 6-28 RGMII interface MAC Configuration
In the MAC Options tab (See
Figure
6-29), users should set up proper values for the PHY chip
88E1111. The MDIO Module should be included, as it is used to generate a 2.5MHz MDC clock for
the PHY chip from the controller's source clock(here a 100MHz clock source is expected) to divide
the MAC control register interface clock to produce the MDC clock output on the MDIO interface.
The MAC control register interface clock frequency is 100MHz and the desired MDC clock
frequency is 2.5MHz, so a host clock divisor of 40 should be used.
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