DIA20 IBus Adapter

This document provides a functional and logical description of the DIA20 IBus Adapter (IBC). It details how the unit allows devices operating on the KA10/KI10 I/O bus (IBus) to be connected to a KL10 computer system via the EBus. Key topics include basic bus operations, IBus command generation by default, data transfer processes, priority interrupt (PI) control, bus level conversion, signal timing, and logic-level descriptions. The manual also includes timing diagrams for various EBus commands and comprehensive tables of signals and mnemonics.