AlphaStation 500 and 600 Systems
CPU-specific support for AlphaStation 500 and 600 systems was
written by Chris Demetriou.
Supported Hardware
The AlphaStation 500 and 600 systems are Digital's high-end PCI-based
workstations. They include the following hardware:
- DECchip 21164 CPU (of varying speed, depending on model)
- PCI Video (VGA-compatible on some models, DECchip 21030-based on others)
- Intel 82375EB PCI-EISA Bridge
- Two NS16550 UARTs
- PS/2-style keyboard and mouse
- Parallel Port
- Windows Sound System compatible sound hardware
- Floppy disk controller with one 1.44MB floppy disk drive
- MC146818-compatible battery-backed clock and timer
Additionally, the AlphaStation 500 includes:
- DECchip 21040-based PCI Ethernet
- One Qlogic ISP-1020 PCI SCSI adapter
and the AlphaStation 600 includes:
- A DECchip 21050 PCI-PCI bridge, with the following devices behind it:
- DECchip 21040-based PCI Ethernet
- Two Qlogic ISP-1020 PCI SCSI adapters
NetBSD/alpha supports all of the standard system hardware listed
above, except:
- The ISP-1020 PCI SCSI adapters
- Floppy disk controller and drive
- Sound hardware
Note that not all of the drivers have been thoroughly tested.
Since the Qlogic ISP-1020 SCSI adapters are not supported,
it is assumed that AlphaStation 500 and 600 systems will be used diskless,
or that NCR/Symbios 53c810 PCI SCSI boards will be purchased and used.
(The AlphaStation 600 used for development contained an NCR 53c810 board.)
Known Hardware-specific Bugs
The following are the known bugs in NetBSD/alpha's support of the
AlphaStation 500 and 600 systems:
- 32bpp frame buffers (e.g. the ZLXp-E2 and ZLXp-E3) are not
currently supported.
- The 53c810 driver is buggy.
- When using a serial console, console output is sometimes garbled.
Alpha Port Page
Home Page
www@NetBSD.ORG
$NetBSD: astation-600.html,v 1.7 1996/11/26 00:49:52 cgd Exp $
Copyright (c) 1996
The NetBSD Foundation, Inc. ALL RIGHTS RESERVED.