TU10 DECmagtape

The TU10 Master DECmagtape system serves as a controller for a magnetic tape drive, supporting up to eight tape transports. This manual covers the following key areas:

• Introduction and Description: Details the NRZI recording method, 9-track and 7-track tape formats, CRC generation, file organization, and writing with extended interrecord gaps.
• Interface and Control: Describes the master interface bus signals, including those used for initialization, tape unit selection, transport status, command signaling, and reading/writing data and timing.
• Theory of Operation: Explains the operational sequence, including tape selection logic, command initiation, and the use of operational status flip-flops and IRG delay counters to manage tape motion.