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LASI(4)              NetBSD/hppa Kernel Interfaces Manual              LASI(4)


NAME

     lasi -- 2nd generation I/O subsystem


SYNOPSIS

     lasi*   at mainbus0
     lasi*   at phantomas?
     gsc*    at lasi?


DESCRIPTION

     Core bus controller and I/O subsystem as present on newer HP 9000/700
     workstations and single-board computers.  The supported core bus con-
     trollers are those used in conjunction with PA7100LC, PA7300LC and early
     PA8000 / PA8200 CPUs and based upon LSI's macrochip that includes:

     ·   Core bus controller
     ·   System Clock
     ·   Interrupt Controller
     ·   Real Time Clock Interface
     ·   Power System support
     ·   RAM and Flash EEPROM controllers
     ·   Two PS/2 ports
     ·   RS-232 and Centronics I/O ports
     ·   i82596CA LAN coprocessor
     ·   NCR53c710 SCSI I/O processor
     ·   Serial Interface for the CS4216 Audio Codec
     ·   Interface for the WD37C65C floppy drive controller
     ·   Optional Telephone interface (two fax/voice modem channels)


MACHINES

     An incomplete list of machines that use the LASI bus controller:

     ·   712/*
     ·   715/{64/80/100}[XC]
     ·   725/{64/80/100}
     ·   743/*
     ·   744/*
     ·   748/*
     ·   A180[C]
     ·   B132L[+], B160L, B180L+
     ·   C100, C110, C132L, C160[L], C180, C200, C240, C360
     ·   J200, J210[XC], J280, J282, J2240
     ·   all [EK]-Class machines
     ·   R380, R390
     ·   RDI PrecisionBook
     ·   SAIC Galaxy 1100


SEE ALSO

     com(4), gsc(4), gsckbc(4), harmony(4), iee(4), intro(4), io(4), lpt(4),
     osiop(4), phantomas(4),

     Precision I/O Architecture Reference Specification, Hewlett-Packard.

     712 I/O Subsystem ERS, Revision 1.1, Hewlett-Packard, 12 February 1993,
     Dwg No. A-A2263-66510-31.

     Hewlett-Packard Journal, Number 2, Volume 46, April 1995.


HISTORY

     The lasi driver appeared in OpenBSD 2.4.  It was ported to NetBSD 1.6 by
     Matthew Fredette.

NetBSD 7.0.2                     March 1, 1999                    NetBSD 7.0.2