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.