April 1, 1999 ASP 4 hp700

### 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/*
- 742i
- 745i/{50,75}
- 747i/{50,75}
- 755/*

### SEE ALSO

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

### HISTORY

The asp driver appeared in OpenBSD2.4. It was ported to NetBSD1.6 by Matthew Fredette.