LSI-11 PDP-11/03

This document is a Maintenance Card for the LSI-11 / PDP 11/03 computer systems, serving as a quick reference guide for troubleshooting, configuration, and programming.

Key sections include:

• ODT Commands: A detailed list of commands for the On-line Debugging Technique, explaining their format and function.
• System Diagnostics & Bootstraps: Flowcharts and commands for REV11 CPU and memory diagnostics, as well as bootstrap procedures for RXV11 (floppy disk), RK05 (hard disk), and Absolute Loaders (including relocated). It also lists associated error codes and meanings.
• Hardware Configuration: Information on module versions and jumpers (e.g., REV11), backplane pin identification and configurations (H9270, DDV11-B), and processor-specific details for the KD11, including memory addressing and refresh settings.
• Memory Modules: Details on MSV11 and MMV11 memory modules, including their refresh modes, sizes, and starting address switches and jumpers.
• Peripheral Device Interfaces: Comprehensive information for various interface modules such as DLV11 (serial line), RXV11 (floppy disk), RKV11 (RK05 disk), and LAV11 (printer). For each, it covers standard device addresses, vectors, jumper configurations, command functions, register formats, error codes, and bootstrap sequences.
• LSI-11 Instruction Set: A detailed breakdown of the instruction set, including word format, program counter addressing modes, single and double operand instructions, optional EIS (Extended Instruction Set) and FIS (Floating Instruction Set), conditional branches, jumps, subroutines, traps, interrupts, and a numerical op code list with reserved trap and interrupt vectors.
• Reference Tables: Useful reference data such as the 7-bit ASCII code, Processor Status Word (PSW) bit definitions, and LSI-11 Bus Pinning.