Difference between revisions of "MXV11-A Multifunction Option Module"

From Computer History Wiki
Jump to: navigation, search
m (See also: +MXV11-B)
m (External links: +microcomputer processor handbook)
 
Line 22: Line 22:
 
==External links==
 
==External links==
  
 +
* [http://www.bitsavers.org/pdf/dec/qbus/Digital_Microcomputer_Processor_Handbook_1979_80.pdf microcomputer processor handbook] - the MXV11-A is covered in Chapter 12, pp. 494-493 (pp. 531-541 of the PDF)
 
* [http://www.bitsavers.org/pdf/dec/qbus/Digital_Microcomputer_Products_Handbook_1985.pdf Microcomputer Products Handbook] - the MXV11-A is covered on pp. 17–1-21 (pp. 231-251 of the PDF)
 
* [http://www.bitsavers.org/pdf/dec/qbus/Digital_Microcomputer_Products_Handbook_1985.pdf Microcomputer Products Handbook] - the MXV11-A is covered on pp. 17–1-21 (pp. 231-251 of the PDF)
 
* [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)]

Latest revision as of 20:47, 13 July 2023

MXV11-AC module

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

External links