MXV11-B Multi-Function Option Module User Guide

This user guide details the MXV11-B Multi-Function Option Module (M7195), a dual-height board compatible with LSI-11 processors and 16/18/22-bit Q-buses.

The document covers:

• General Description: Outlines the module's core features, including 128KB MOS RAM (with optional battery backup and on-board refresh), Read-Only Memory (ROM) capability via two sockets (supporting 2K, 4K, or 8K PROMs/ROMs for bootstrap, diagnostics, or user routines, accessible via direct or window-mapped addressing), two asynchronous Serial Line Units (SLU0 and SLU1, with configurable baud rates and interrupt priorities), a Line Time Clock (LTC) with selectable frequencies, and an LED Diagnostic Display Register.
• Functional Description: Explains the operational aspects of each component, such as RAM/ROM addressing modes, crystal oscillator timing, SLU register details (Receiver/Transmitter Status and Data Buffers), and supported cabling (EIA-423, RS-232, 20 mA current loop).
• Jumper Configurations: Provides comprehensive instructions, checklists, flow diagrams, and tables for configuring the module via push-on and wire-wrap jumpers. This includes setting console mode, ROM/RAM starting addresses, LTC frequency, SLU baud rates, and system size (Q-bus vs. Q22-bus).
• Maintenance and Diagnostics: Describes the built-in CVMX BAO diagnostic program for testing the module's components (RAM, ROM, SLUs, registers), outlining error handling, system requirements, and operational procedures for running diagnostics.

In essence, the guide serves as a complete manual for understanding, configuring, and troubleshooting the MXV11-B module in a Q-bus system environment.