Difference between revisions of "MXV11-A Multifunction Option Module"
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* [http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/MXV11-AA,%20AC%20Configuration%20Guide%20(M8047).pdf MXV11-AA, AC Configuration Guide (M8047)]  | * [http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/MXV11-AA,%20AC%20Configuration%20Guide%20(M8047).pdf MXV11-AA, AC Configuration Guide (M8047)]  | ||
* [https://www.mainecoon.com/classiccmp/MXV11-A/ MXV11-A Field Maintenance Print Set] (MP00730)  | * [https://www.mainecoon.com/classiccmp/MXV11-A/ MXV11-A Field Maintenance Print Set] (MP00730)  | ||
| − | * [http://  | + | * [http://www.kpxx.ru/FrainResearch/projects/pdp-11/multifunction.html Multifunction Modules]  | 
[[Category: QBUS Asynchronous Serial Interfaces]]  | [[Category: QBUS Asynchronous Serial Interfaces]]  | ||
[[Category: QBUS Memories]]  | [[Category: QBUS Memories]]  | ||
[[Category: QBUS ROMs]]  | [[Category: QBUS ROMs]]  | ||
Revision as of 00:35, 28 July 2024
The MXV11-A Multifunction Option Module is a QBUS dual-height peripheral board (M8047), intended to allow the creation of complete systems in a minimal-sized QBUS backplane.
It contains two asynchronous serial lines (using the DL11 programming standard), an optional non-programmable line time clock, a block of main memory, and some PROM for bootstrap purposes. The serial lines are connected via 10-pin Berg connector headers on the top edge of the card, using the standard DEC asynchronous serial line pinout, and line 1 can be set to halt or boot the machine on a break.
Two different versions exist:
- MXV11-AA - 8Kbytes of RAM
 - MXV11-AC - 32Kbytes of RAM
 
It is a Q18 device, and the RAM cannot be used when it is in a Q22 system.
See also
Further reading
- MXV11 Configuration, MicroNote #054
 
External links
- microcomputer processor handbook - the MXV11-A is covered in Chapter 12, pp. 494-493 (pp. 531-541 of the PDF)
 - Microcomputer Products Handbook - the MXV11-A is covered on pp. 17–1-21 (pp. 231-251 of the PDF)
 - MXV11-AA, AC Configuration Guide (M8047)
 - MXV11-A Field Maintenance Print Set (MP00730)
 - Multifunction Modules