Common Chip for Use in Disk and Diskette Controllers

The advent of LSI technology makes common microprogrammable controllers very cost-effective today. This paper focuses on the application of microcontrollers for disk and diskette control functions and describes a custom-designed FET chip which is being developed for use in these types of controllers. The architecture, the functional organization, and the physical design of this chip are presented, and the requirement of matching a microcontroller to the application is discussed.