Difference between revisions of "DR11 parallel interface"
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| − | * [[DRV11 Parallel Line Unit|DRV11]]: as for the DR11, on a [[DEC card form factor|dual]] card | + | * [[DRV11 Parallel Line Unit|DRV11]]: as for the DR11-C, on a [[DEC card form factor|dual]] card |
* [[DRV11-J High-Density Parallel Interface|DRV11-J]]: 4 DRV11's on a dual card | * [[DRV11-J High-Density Parallel Interface|DRV11-J]]: 4 DRV11's on a dual card | ||
* [[DRV11-B Direct Memory Access Interface|DRV11-B]]: DMA, quad card, 18-bit DMA addresses | * [[DRV11-B Direct Memory Access Interface|DRV11-B]]: DMA, quad card, 18-bit DMA addresses | ||
Revision as of 17:34, 10 May 2020
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-A: programmed I/O, quad SPC slot
- DR11-B: DMA, 4-slot system unit
- DR11-C: single-board replacement for the DR11-A
- DR11-K: similar functionality to the DR11-C, more robust user interface
- DR11-L: double input-only
- DR11-M: double output-only
- DR11-W: hex single-board replacement for the DR11-B
and for the QBUS:
- DRV11: as for the DR11-C, on a dual card
- DRV11-J: 4 DRV11's on a dual card
- DRV11-B: DMA, quad card, 18-bit DMA addresses
- DRV11-WA: DMA, dual card, 22-bit DMA addresses
There is also a DRV11-C (M8040), but little is currently known about it.
Almost all use the same interface, except the DRV11-J, which for space reasons uses a different header on the card.
