MicroPDP-11 Systems Maintenance Guide

This document is a "Maintenance Guide" for MicroPDP-11 Systems, specifically focusing on the KDJ11-B CPU module and various MSV11 memory modules.

Key areas covered include:

1. KDJ11-B System Configuration:

   • Details the KEPROM (containing hardware parameters, boot device selection, foreign language text, and bootstrap programs).
   • Explains the function and factory settings of DIP switches and jumpers on the KDJ11-B board (e.g., for baud rate selection, manufacturing/test purposes).
   • Describes the diagnostic LEDs on the KDJ11-B, indicating power status, error detection, and diagnostic codes.

2. KDJ11-B Operating Modes and Commands:

   • Automatic Boot Mode: How the system boots automatically, including self-test procedures and the sequence for selecting boot devices.
   • Dialog Mode: An interactive mode allowing users to change CPU parameters, select boot sources, display memory/register locations, cause self-tests to loop, and enter ROM ODT. It lists various commands (HELP, BOOT, LIST, SETUP, TEST).
   • Setup Mode: A comprehensive mode for configuring various system parameters, including:
     • Modifying CPU parameters (e.g., enabling/disabling halt, clock control, ECC tests, memory tests, ROM settings, trap on halt).
     • Managing the Boot Translation Table to support nonstandard boot device addresses or multiple controllers.
     • EEPROM Boot Management: Commands to list, save, load, delete, and edit custom boot programs stored in the EEPROM.
     • ROM ODT (On-line Debugging Technique): Provides commands for low-level memory inspection and debugging within specified address ranges.

3. Memory Modules:

   • MSV11-P (PK/PL Models): Describes their capacity, configuration using jumpers and wire-wrap pins for CSR addresses and starting memory addresses, and how to expand the system with additional modules.
   • MSV11-JD and MSV11-JE (M8637): Covers features like Error Detection and Correction (ECC), battery backup (for retaining memory contents), Private Memory Interconnect (PMI) protocol, and configuration via jumpers and switch packs for starting memory and CSR addresses.
   • MSV11-Q: Outlines its variants and specific configurations using DIP switches and jumpers for address selection and CSR settings.

In essence, the document serves as a detailed manual for configuring, troubleshooting, and understanding the hardware settings and boot processes of the MicroPDP-11 Systems, with a strong emphasis on CPU (KDJ11-B) and various memory modules.