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ICS90P(4)		    BSD Programmer's Manual		     ICS90P(4)

NAME
     ICS90P - Physical layer (PHY) driver for ICS 1890 PHYceiver

SYNOPSIS
     ics90p* at de? phy ?

DESCRIPTION
     The ics90p driver supports the Integrated Circuit Systems 1890 PHYceiver
     device (PHY) for 10 and 100 Mb/s Ethernet. This device driver is called
     upon by network device drivers; no direct administrative control is pro-
     vided.

     The ifconfig(8) command in conjunction with the device driver making us-
     ing of this drivers services provides an administrative interface that
     allows various physical level parameters (such as duplex, speed, and
     loopback) to be controlled.

     The ICS 1890 supports NWay automatic speed and duplex negotiation as well
     as automatic speed detection for hubs that do not support the NWay FLP
     protocol (both methods are defined by the IEEE 802.3u standard).

SEE ALSO
     ifconfig(8),  de(4)

4th Berkeley Distribution      December 13, 1996			     1

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