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.