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OK, maybe not so useful, seeing as I seem to have the only XD88 left in the world...
XD88 Models
Tektronix produced several XD88 variants. Information on these is sketchy at best, although I've been able to piece together the following:
| Model | Type |
|---|
| XD88/01 | 'Headless' server machine with no graphics (likely a /10 with missing framebuffer board) |
| XD88/10 | The machine described in these pages |
| XD88/20 | Unknown. Possibly as the /10, but with 24 bit framebuffer? |
| XD88/30 | Monster VME rack system, 24 bit framebuffer and hardware 3D |
Config Switches
Switches 1-4 control boot operation.
| SW1 | SW2 | SW3 | SW4 | Meaning |
|---|
| on | on | on | on | Auto-boot from 1st disk found |
| on | on | on | off | Auto-boot from 1st disk found (verbose) |
| on | on | off | on | Auto-boot from 1st LAN found |
| on | on | off | off | Auto-boot from 1st LAN found (verbose) |
| on | off | on | on | Reserved |
| on | off | on | off | Reserved |
| on | off | off | on | Reserved |
| on | off | off | off | Reserved |
| off | on | on | on | Manual boot device menu |
| off | on | on | off | Manual boot device menu (verbose) |
| off | on | off | on | Reserved |
| off | on | off | off | Reserved |
| off | off | on | on | Peek-poke monitor (service use only) |
| off | on | off | off | Extended diagnostics (group1) (service use only) |
| off | off | off | on | Extended diagnostics (group2) (service use only) |
| off | off | off | off | Extended diagnostics (group3) (service use only) |
Switches 5-8 control console output.
| SW5 | SW6 | SW7 | SW8 | Console |
|---|
| on | on | on | on | Framebuffer |
| on | on | on | off | Serial port 0, 300 baud |
| on | on | off | on | Serial port 0, 1200 baud |
| on | on | off | off | Serial port 0, 2400 baud |
| on | off | on | on | Serial port 0, 4800 baud |
| on | off | on | off | Serial port 0, 9600 baud |
| on | off | off | on | Serial port 0, 19200 baud |
| on | off | off | off | Serial port 0, 38400 baud |
| off | on | on | on | Null console |
| off | on | on | off | Serial port 1, 300 baud |
| off | on | off | on | Serial port 1, 1200 baud |
| off | on | off | off | Serial port 1, 9600 baud |
| off | off | on | on | Serial port 1, 19200 baud |
| off | on | off | off | Serial port 1, 38400 baud |
| off | off | off | on | Serial port 1, 2400 baud |
| off | off | off | off | Reserved |
ROM Dumps
I'll get around to these at some point. If anyone needs them, shout (see contacts page for address).
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