MPS UserGuide

This document is the "MPS Microprocessor Development System Operating Guide," published by Digital Equipment Corporation's Logic Products Group in October 1975.

It serves as a comprehensive guide for users to install, program, and operate the MPS Microprocessor Development System. The system is described as a modular, general-purpose, 8-bit programmable processor designed for various applications such as process monitoring and control, data acquisition, and decision-making functions.

The guide details:

• System Components: Both processor and programming configurations, including specific hardware modules (e.g., M7341 Processor Module, M7345 PROM, M7344 RAM, M1501/M1502 I/O interfaces, KMP02 System Unit, KC341-B Monitor/Control Panel, mounting enclosures, and various cables).
• Software Packages: Available software for program development, such as the Microprocessor Language Assembler, Editor, and Debugging Program (MDP), for use either directly on the MPS system or with a PDP-8 processor.
• System Capabilities: 8-bit parallel input (up to five words) and output (up to six words), serial I/O via a 20 mA current loop (110 baud internal, up to 9600 baud external), and expandable memory from 2K to 16K words (RAM or PROM).
• Installation: Instructions for mounting hardware, power supply selection and wiring, module installation, and cabling.
• Operation and Programming: Guidance on using the KC341-B Monitor/Control Panel for direct control and diagnostics, operating a teletypewriter for paper tape I/O, PROM programming, and detailed step-by-step checkout procedures using sample programs for memory, I/O, and arithmetic functions.

Appendices provide technical references for serial I/O connections, block-offset to octal conversion, and 7-bit ASCII code.