Honeywell Information Systems Inc.

Honeywell Bull, Inc.

John W Bradley

Edward F Getson, Jr

Bruce R Cote

A disk controller address register is used to address both a disk controller memory and a system memory between which data is transferred as it is stored on or retrieved from a disk storage device. A single address is provided to the address register which then develops other addresses needed in the data transfer between the two memories.

Disk controller memory address register

Information read from a disk device includes synchronization bytes to enable a controller to get into byte synchronization with a stream of bits received from the disk. The stream of bits passes through a shift register. Firmware conditions a multiplexer which receives the parallel output of the serial register to select the high order binary ONE bit thereby enabling the controller to get into byte synchronization with the stream of bits.

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West Peabody, MA, United States of America

John W Bradley