hpp man page on BSDOS

hpp man page on BSDOS

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

NAME
     hpp - HP EtherTwist PC LAN Adapter/16 Plus

SYNOPSIS
     hpp0 at isa? port 0x2c0 iomem 0xc8000 iosiz 2048

DESCRIPTION
     The hpp interface provides access to a 10 Mb/s Ethernet network.  It sup-
     ports the HP 27247B PC LAN Adapter/16 TP Plus [AUI/UTP] and the HP 27252A
     PC LAN Adapter/16 TL Plus [AUI/BNC] It uses a block of 32 i/o ports in
     the range 0x100 through 0x3e0.  The block must be aligned on a 32 port
     boundary.	The base port and memory address are set a manufacturer-pro-
     vided setup program using manual configuration..  It uses an 2 kilobyte
     shared memory area at a 16KB-aligned address from 0xC8000 through
     0xEC000.  The memory address in the config file must agree with the ad-
     dress used when the card was configured.  The hardware interrupt level
     may be read from the card or specified in the config file entry.

     Each of the host's network addresses is specified at boot time with an
     SIOCSIFADDR ioctl.	 The hpp interface employs the address resolution pro-
     tocol described in arp(4) to dynamically map between Internet and Ether-
     net addresses on the local network.

MEDIA SELECTION
     The media selection defaults to using the AUI connector.  The interface
     flag IFF_LINK0 selects the alternate media (TP or BNC).  See ifconfig(8)
     for details.

SEE ALSO
     intro(4),	inet(4),  arp(4),  ifconfig(8)

AUTHOR
     Written for use in BSD/OS by Kevin Fall (kfall@cs.ucsd.edu).

BSDI BSD/OS		       January 30, 1994				     1

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