Difference between revisions of "DR11 parallel interface"
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* [[DR11-L general-purpose interface|DR11-L]]: double input-only | * [[DR11-L general-purpose interface|DR11-L]]: double input-only | ||
* [[DR11-M general-purpose interface|DR11-M]]: double output-only | * [[DR11-M general-purpose interface|DR11-M]]: double output-only | ||
| − | * [[DR11-W Direct Memory Interface|DR11-W]]: [[DEC card form factor|hex]] single-board replacement for the DR11-B | + | * [[DR11-W Direct Memory Access Interface|DR11-W]]: [[DEC card form factor|hex]] single-board replacement for the DR11-B |
<!--Almost all use the same interface, except the DRV11-J, which for space reasons uses a different header on the card. --> | <!--Almost all use the same interface, except the DRV11-J, which for space reasons uses a different header on the card. --> | ||
Revision as of 16:43, 2 December 2021
The DR11s were a series of parallel interfaces for the UNIBUS. Some used DMA, others were programmed I/O.
They included:
- 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 device interface
- DR11-L: double input-only
- DR11-M: double output-only
- DR11-W: hex single-board replacement for the DR11-B
See also
This disambiguation page lists articles which all may be referred to by the title term.
If an internal link led you here, you may wish to change the link to point directly to the intended article.
