CONTROL ARRANGEMENT FOR MAGNETIC BUBBLE MEMORIES

摘要

An arrangement for incorporating a magnetic bubble memory (MBM) into a system having a system processor and a direct access storage (RAM) utilizes digital command words that represent basic MBM data operations. The processor controls the MBM indirectly by assembling strings of command words in RAM which are transferred to a control interface individually by a direct memory access device. The interface then translates the command words into a set of control signals that are applied to the drive system of the MBM. Each string of command words preferably corresponds to a complete memory read or write operation or a major portion thereof.