Design considerations -1, Timing constraints -1, Testbench -1 – Altera Triple Speed Ethernet MegaCore Function User Manual

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10/100/1000 Multiport Ethernet MAC with 1000BASE-X/SGMII PCS Signals...................7-20
10/100/1000 Ethernet MAC with 1000BASE-X/SGMII PCS and Embedded PMA

Signals........................................................................................................................................7-22

10/100/1000 Multiport Ethernet MAC with 1000BASE-X/SGMII PCS and Embedded

PMA...........................................................................................................................................7-25

1000BASE-X/SGMII PCS Signals................................................................................................7-34

1000BASE-X/SGMII PCS and PMA Signals..............................................................................7-38

Timing.........................................................................................................................................................7-39

Avalon-ST Receive Interface........................................................................................................7-39

Avalon-ST Transmit Interface.....................................................................................................7-41

GMII Transmit...............................................................................................................................7-41

GMII Receive..................................................................................................................................7-41

RGMII Transmit............................................................................................................................7-42

RGMII Receive...............................................................................................................................7-42

MII Transmit..................................................................................................................................7-43

MII Receive.....................................................................................................................................7-43

IEEE 1588v2 Timestamp...............................................................................................................7-43

Design Considerations........................................................................................8-1

Optimizing Clock Resources in Multiport MAC with PCS and Embedded PMA.............................8-1

MAC and PCS With GX Transceivers..........................................................................................8-2
MAC and PCS With LVDS Soft-CDR I/O...................................................................................8-4

Sharing PLLs in Devices with LVDS Soft-CDR I/O................................................................................8-6
Sharing PLLs in Devices with GIGE PHY................................................................................................8-6
Sharing Transceiver Quads.........................................................................................................................8-7
Migrating From Old to New User Interface For Existing Designs.......................................................8-7

Exposed Ports in the New User Interface.....................................................................................8-7

Timing Constraints.............................................................................................9-1

Creating Clock Constraints........................................................................................................................9-1
Recommended Clock Frequency...............................................................................................................9-3

Testbench...........................................................................................................10-1

Triple-Speed Ethernet Testbench Architecture ....................................................................................10-1
Testbench Components............................................................................................................................10-1
Testbench Verification..............................................................................................................................10-2

Testbench Configuration..........................................................................................................................10-3

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TOC-5

Triple-Speed Ethernet MegaCore Function User Guide

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