LASI(4) | Device Drivers 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), hppa/gsc(4), hppa/gsckbc(4), hppa/harmony(4), hppa/intro(4), hppa/io(4), hppa/phantomas(4), iee(4), lpt(4), osiop(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.

February 17, 2017 | NetBSD 9.3