Difference between revisions of "DR11 parallel interface"

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(+DRV11-C)
m (Link DR11-B)
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* DR11 (sometimes called the DR11-A): programmed I/O, [[quad]] [[SPC]] slot
 
* DR11 (sometimes called the DR11-A): programmed I/O, [[quad]] [[SPC]] slot
* DR11-B: DMA, 4-slot [[system unit]]
+
* [[DR11-B parallel interface|DR11-B]]: DMA, 4-slot [[system unit]]
 
* DR11-C: single-board replacement for the DR11-A
 
* DR11-C: single-board replacement for the DR11-A
 
* DR11-W: [[hex]] single-board replacement for the DR11-B
 
* DR11-W: [[hex]] single-board replacement for the DR11-B

Revision as of 15:35, 4 June 2017

The DR11s were a series of parallel interfaces for the UNIBUS and QBUS. Some used DMA, others were programmed I/O. They included, for the UNIBUS:

  • DR11 (sometimes called the DR11-A): programmed I/O, quad SPC slot
  • DR11-B: DMA, 4-slot system unit
  • DR11-C: single-board replacement for the DR11-A
  • DR11-W: hex single-board replacement for the DR11-B

and for the QBUS:

  • DRV11: as for the DR11, on a dual card
  • DRV11-J: 4 DRV11's on a dual card
  • DRV11-B: DMA, quad card, 18-bit DMA addresses
  • DRV11-W: DMA, dual card, 22-bit DMA addresses

There is also a DRV11-C (M8040), but little is currently known about it.

All use the same interface, except the DRV11-J, which for space reasons uses a different header on the card.