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PCN(4) Device Drivers Manual PCN(4)

pcn
AMD PCnet-PCI 10/100 Ethernet device

pcn* at pci?
acphy* at mii?
amphy* at mii?
lxtphy* at mii?
nsphy* at mii?

The pcn device driver supports Ethernet interfaces based on the AMD PCnet-PCI family of Ethernet chips. The chips supported by the pcn driver include:
PCnet-PCI chips are found on some Hewlett-Packard PCI Ethernet boards, and on the Allied Telesyn AT-2700TX PCI Ethernet board. They are also found on some processor evaluation boards as an example peripheral.
The pcn driver also supports the emulated PCnet-PCI interface provided by VMware.

acphy(4), amphy(4), arp(4), ifmedia(4), lxtphy(4), mii(4), netintro(4), nsphy(4), pci(4), ifconfig(8)

The pcn driver first appeared in NetBSD 1.6. OpenBSD support was added in OpenBSD 3.8.

The pcn driver was written by Jason R. Thorpe <thorpej@wasabisystems.com> and ported to OpenBSD by Brad Smith <brad@openbsd.org>.
July 16, 2013 OpenBSD-6.1