| LASI(4) | Kernel Interfaces Manual (HPPA) | 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, 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.