ASP(4) (hp700)

ASP(4) | NetBSD Kernel Interfaces Manual (hp700) | ASP(4)

# NAME

asp — first generation I/O subsystem

# SYNOPSIS

asp* at mainbus0
gsc* at asp?

# DESCRIPTION

Core bus controller and I/O subsystem as present on older HP 9000/700 workstations. The supported core bus controllers are those used in conjunction with PA7000, PA7100, and PA7150 CPUs and include:

- Core bus controller
- System Clock
- Interrupt Controller
- DMA Controller
- Real Time Clock Interface
- RAM and EEPROM controllers

# MACHINES

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

- 705, 710
- 715/{33,50,75}
- 725/{50,75}
- 720, 730, 750
- 735/*, 755 (ASP2)
- 742i
- 745i/{50,75}
- 747i/{50,75}
- 755/*

# SEE ALSO

gsc(4), intro(4), io(4)

Hardball I/O Subsystem ERS, Revision 1.1, Hewlett-Packard, 30 September 1991.

# HISTORY

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

April 5, 2008 | NetBSD 5.99