asp(4) - NetBSD Manual Pages

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ASP(4)               NetBSD/hp700 Kernel Interfaces Manual              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 con-
     junction 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.

NetBSD 6.1.2                     April 5, 2008                    NetBSD 6.1.2