The Wake on LAN (WoL) is a feature that allows a load/client on a network to be turned on by a message sent via the network. The idea behind WoL is that devices on the network will consume less power in stand-by mode and only wake up when required, thus making the system green or environmentally friendly. Having a separate network monitor that scans network packets to look for special data sequences is required under such conditions. This reference design implements the portion that scans network packets for a special data sequence and transmits an interrupt signal to the system controller.
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Block Diagram
Performance and Size
| Tested Devices* | Performance | I/O Pins | Design Size | Revision |
|---|---|---|---|---|
| LC4032ZE-7TN48 | >80MHz | 8 | 22 Macrocells | 1.0 |
| LCMXO256C-3T100C | >150MHz | 8 | 49 LUTs | 1.0 |
* May work in other devices as well.
Note: The performance and design sizes shown above are estimates only. The actual results may vary depending upon the chosen parameters, timing constraints, and device implementation. See the design's documentation for details. All coding and design work was done on a PC platform unless noted otherwise.
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