TM11 DECmagtape System

This document is a technical manual for the TM11 DECmagtape system, which serves as a magnetic tape storage interface for the PDP-11 computer family. It includes comprehensive details on:

• System Overview: Components of the system, including the TU10 tape transport, TM11 controller, and tape formats (7-channel and 9-channel).
• Installation: Procedures for unpacking, inspection, space requirements, power, and cabling.
• Operation: Control panel descriptions for the TU10 transport and the TM11 maintenance panel, along with operational procedures (mounting, on-line/off-line operation, and restarts).
• Programming: Detailed register descriptions (Status, Command, Byte Record Counter, Current Memory Address, Data Buffer, and Read Lines) and interrupt handling.
• Theory of Operation: Functional block descriptions of the controller's logic (selection, bus control, register logic, etc.), tape formatting details, and timing diagrams.
• Module Utilization: A breakdown of the logic modules used in the TM11 controller.