Patent ID: 6594716
Filing Date: 2003-07-15
Classification: G06F,G11B

Abstract:
An integrated disk drive controller integrated circuit comprising:a plurality of predetermined circuit blocks corresponding to discrete component circuits, the plurality of predetermined circuit blocks including: at least one internal communications and control bus, for transferring stored data and control data to and from elements within the integrated disk drive controller and interconnected with a host interface to transfer stored data and control data to and from the integrated hard disk drive controller, at least one of a read channel controller and a read/write channel controller, coupled to a head preamplifier and the at least one internal communications and control bus, for receiving and processing read channel data from the head preamplifier, a motion control servo logic, coupled to the servo control, for generating control signals for driving the servo control, a disk controller, coupled to the at least one internal communications bus, for transferring stored data to the host interface, and a microcontroller, coupled to the at least one internal communications bus, for generating control data to control devices within the integrated disk drive controller integrated circuit, and a MUX for selectively multiplexing outputs of one or more of the plurality of discrete component circuit blocks with one or more I/O pins such that the integrated circuit selectively outputs signals from one or more of the predetermined circuit blocks.