G - Physics – 06 – F
Patent
G - Physics
06
F
352/21.2
G06F 13/10 (2006.01) G06F 3/06 (2006.01)
Patent
CA 1324829
ABSTRACT OF THE DISCLOSURE A system of disk device selector circuits for a disk controller, which is provided for the disk controller to which different types of plural magnetic disk devices are connected via common control signal lines and each of the magnetic disk devices, for selecting one out of the different types of the disk devices by means of a selection controlling circuit provided in the disk controller. Each of the magnetic disk devices is provided with a response signal outputting circuit whereby a response signal indicating that the device has been selected is output when the disk device selected by the selection controlling circuit of the controller is the device itself. The response signal is received by a response signal receiving circuit provided in the controller via a common reply signal line from the selected magnetic device, whereby the controller can recognize the type of the selected disk device and set up the correct data transferring rate between that type of the device and the controller itself, and thus occurrence of data reading errors and other troubles can be prevented and smooth operation of the overall system can be achieved.
533773
Kirby Eades Gale Baker
Mitsubishi Denki Kabushiki Kaisha
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