DS11 Multiple Line Synchronous Interface
From Computer History Wiki
The DS11 Multiple Line Synchronous Interface is an early synchronous serial line interface for the UNIBUS; it can handle up to 16 lines.
It consists of a master line scanner, and up to four adapters, each of which can handle up to four lines. Physically, it is a large backplane, mounted in a 19" cabinet such as an H950, along with an DEC indicator panel; each line has a separate quad M7110 Line Control Module.
|Receiver Status Register||RxCSR||775xx0|
|Receiver Data Buffer Register||RxDBUF||775xx2|
|Transmitter Status Register||TxCSR||775xx4|
|Transmitter Data Buffer Register||TxDBUF||775xx6|
- Line 0: 775400-775406
- Line 15: 775570-775576
- DS11 Multiple Line Synchronous Interface Maintenance Manual (DEC-00-DS11-DB; not available online, but in fiche)
- DECsystem-10 System Reference Manual - documents the DS11 registers in Appendix C (pp. 370-371 of the PDF)