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 controllers 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, 12 February 1993, Hewlett-Packard, Dwg No. A-A2263-66510-31. Hewlett-Packard Journal, April 1995, Volume 46, Number 2.

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