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EMAC Functional Architecture

2.3.5Source Synchronous Serial Media Independent Interface (S3MII) Connections

Figure 6 shows a TCI6486/C6472 device with an integrated EMAC and MDIO interface via S3MII connections connected to a PHY. The S3MII interface supports source synchronous 10-Mbps and 100-Mbps operations with full- and half-duplex support.

Figure 6. Ethernet Configuration with S3MII Interface

125-MHz

XO

System

EMAC

 

core

 

MDIO

125-MHz

zero-delay clock￿buffer

MHZ_125_CLK

TX_CLK

TXD

TX_SYNC

RX_CLK

RXD

RX_SYNC

MDCLK

MDIO

Physical

layer

device (PHY)

SPRUEF8F –March 2006 –Revised November 2010

C6472/TCI6486 EMAC/MDIO

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Texas Instruments TMS320TCI6486 manual Ethernet Configuration with S3MII Interface