M7270 LSI-11/2 Microcomputer Module

This document, the M7270 LSI-11/2 microcomputer module user's guide, provides essential information for system integrators and technicians working with the M7270 processor. The manual is structured into four main chapters and an appendix:

• Chapter 1 (Introduction): Outlines product specifications, physical dimensions, power requirements, and pin utilization.
• Chapter 2 (Installation): Details configuration via module jumpers (including master clock, line-time clock, and power-up modes), system backplane requirements, and physical installation steps.
• Chapter 3 (Technical Description): Describes the functional logic, including clock pulse/charge pump circuits, wake-up circuit, bus driver logic, and DMA arbitration.
• Chapter 4 (Maintenance): Provides guidance on running diagnostics and troubleshooting common issues.
• Appendix A (H9281 Backplane User's Guide): Offers specific mounting, power, and signal connection information for the H9281 series backplanes.

The guide is intended to be used in conjunction with the Microcomputer Handbook for comprehensive LSI-11 system information.