AN-764 Overview
AN-764 Application Note A FLOPPY DISK CONTROLLER USING THE MC6852 SSDA AND OTHER M6800 MICROPROCESSOR FAMILY PARTS Prepared by: Parker Semiconductor Systems Engineering This application note describes a floppy disk controller based on the M6800 family of parts. It uses the Synchronous Serial Data Adapter (SSDA) as the primary data interface with the MPU and does not require DMA for transfer of data to and from...
AN-764 Key Features
- Controller operates one to four daisy-chained drives
- Four drive radial configuration possible with addi
- Flexible drive interfacing
- MPU controls data transfer allowing
- Store only desired data from a sector into memory
- Search disk for pattern match without transferring data into memory until pattern is found
- Read or write entire track in one revolution; consecutive tracks on consecutive revolutions
- DMA not required when using host MPU
- Interrupt MPU system operations on address mark
- Seek interlaced with R/W when using radial configuration