MS11-M MOS Memory

This document covers the MS11-M, a metal-oxide semiconductor (MOS) RAM module designed for PDP-11 Unibus or extended Unibus systems. It explains the module's features, including error correction code (ECC) logic, capacity options (64K or 128K words), and power requirements. The guide provides detailed installation steps, such as switch and jumper configurations for memory addressing, interleaving, and CSR address selection. It also details the Control and Status Register (CSR) bit assignments, which are essential for managing memory diagnostics and ECC functions.