General Device Interface

This user's manual details the DR11-C general device interface, which facilitates program-controlled 16-bit parallel data transfers between a PDP-11 Unibus and external peripheral devices. The manual covers the device's functional architecture—including address selection, interrupt control, and buffer register logic—along with hardware installation guidelines for M7860 modules and configuration for interprocessor communication. It also provides comprehensive technical specifications, pin assignments for Berg connectors, and signal descriptions for both user inputs and outputs.