KW11-P Programmable Real-Time Clock

This document provides a comprehensive technical overview and programming guide for the KW11-P Programmable Real-Time Clock, designed for the PDP-11 computer system. It is structured into several chapters detailing the hardware functionality and software control:

• Detailed Description: Explains the functional units, address selection, gating control, and the clock control logic, including clock selection, counter operation, and interrupt mechanisms.
• Programming Information: Provides practical examples of how to program the KW11-P for different modes of operation, such as using it as an external interval timer, an event counter, or for generating interrupts.

Schematics and logic diagrams are included to support the hardware description, while software examples demonstrate how to initialize and control the clock.