Features a Time-domain reflectometer TDR with a granularity of 30 meter. Archived from the original on And this chip bug might be the reason. This page was last edited on 17 April , at External loopback on a live network may cause reception of invalid loopback failure indications. These differences are not likely to require modifications of any device driver. Note that this condition only occurs when warm booting from another operating system.
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Articles that may contain original research from November All articles that may contain original research All articles with unsourced statements Articles with unsourced statements from July This etyernet you should be able use the original bit software on these members of the PCnet family of single-chip Ethernet controllers. The user can manually override the autoselected mode by adding media options to rc. Archived from the original on November Learn how and when to remove this template message.
Archived from the original PDF on am79c93 From Wikipedia, the free encyclopedia.
AMD Lance Am7990
These differences are not likely to require modifications of any device driver. Some operating systems place the controller in low power mode when shutting down, and some PCI BIOSes fail to bring the chip out of this state before configuring it. Of course, this precludes multicast support. Views Read Edit View history. The pcn driver supports the following media options: Please improve it by verifying the claims made and adding inline citations.
If you power down your system prior to booting FreeBSD, the card should be configured correctly. For more information on configuring this device, see ifconfig 8. Receive address filtering is provided using a single perfect filter entry for the station address and a bit multicast hash table.
Download AMD PCNET Family PCI Ethernet Adapter
Receive lockup may occur if bus latency is large. The controller loses all of its PCI configuration in the D3 state, so if the BIOS does not set it back to full power mode in time, it will not be able to configure it correctly.
Note that this condition only occurs when warm booting from another operating system. The driver tries to detect this condition and bring the adapter back to the D0 full power state, but this may not be enough to return the driver to a fully operational condition.
Retrieved from ” https: The AMD chips provide a mechanism for zero-copy receive, providing ethernett performance in server environments. C chips have a bug which causes garbage to be inserted in front of the received packet.
Will poll computer memory every ehernet. This section possibly contains original research. But the “Table B The workaround is to ignore packets with an invalid destination address garbage will usually not match.
Networking hardware Integrated circuits. And this chip bug might be the reason.
External loopback on a live network may cause reception of invalid loopback failure indications.