QBUS asynchronous serial interfaces

A number of QBUS asynchronous serial interfaces are available; some are single-line units, others are multi-line. Most are programmed I/O (sometimes using interrupts on the QBUS), but there are some which use DMA. Most are peripherals dedicated solely to providing asynchronous serial lines, but a few are multi-function units which also provide other capabilities.

Single-line programmed I/O

• DLV11 asynchronous serial line interface
• DLV11-E asynchronous serial line interface
• DLV11-F asynchronous serial line interface

Multi-line programmed I/O

• DLV11-J asynchronous serial line interface
• DZQ11 asynchronous serial line interface
• DZV11 asynchronous serial line interface

Multi-line DMA

• DHQ11 asynchronous serial line interface
• DHV11 asynchronous serial line interface
• CXY08 8-Line Asynchronous Multiplexer

Multi-function

• MXV11-A Multifunction Option Module
• MXV11-B Multifunction Option Module

Further reading

• Async., Serial Line Unit Comparisons, MicroNote #024A
• Cables for DLV11, DLV11-E, DLV11-F, MicroNote #033