In accordance with the present invention, a method and a structure are provided in a hard disk controller to automatically transfer multiple sectors or blocks of data between a host processor and a physical mass storage medium without intervention by the microprocessor of the hard disk controller, ...
8259AThe 8259A is a device specifically designed for usein real time interrupt driven microcomputer systemsIt manages eight levels or requests and has built-infeatures for expandability to other 8259A’s (up to 64levels) It is programmed by the system’s