SBC-11/21 Single-Board Computer

This document is the user guide for the SBC-11/21 single-board computer (KXT11-AA module). It provides comprehensive technical information including:

• Specifications and Installation: Physical and environmental specs, pin identification, jumper configuration for battery backup, memory maps, and parallel/serial I/O setup.
• Macro-ODT: Details on the optional Macro-ODT PROM firmware for diagnostics, bootstrap, and on-line debugging.
• System Architecture: Information on the microprocessor, memory organization, and power-up/power-down facilities.
• Programming: Details on serial line units (SLUs), parallel I/O interface programming, addressing modes, and the instruction set.
• Theory of Operation: Hardware logic design details including timing, bus control, and interrupt control logic.
• LSI-11 Bus: Information on bus structure, data transfer cycles, and protocol for LSI-11 compatible modules.
• Software Development: Guidelines for creating, loading, and running stand-alone programs.
• Appendices: Instruction timing, programming differences between SBC-11/21 and other LSI-11 models, and schematics.