Patent ID: 6567230
Filing Date: 2003-05-20
Classification: G11B,H03H

Abstract:
A digital filter, comprising:a plurality of selectable filter modules, wherein each of said plurality of selectable filter modules functions in a serial or parallel filtering mode when selected; a plurality of configurable registers, wherein the configuration of each of said plurality of configurable registers determines a selection of at least one of said plurality of selectable filter modules, wherein said plurality of configurable registers comprise a plurality of mode selection registers switchable in different modes, wherein said plurality of mode selection registers comprise bits specifying at least a filter type and an output state as configured by an input interface; an input interface, coupled to said plurality of configurable registers, that configures said plurality of configurable registers in response to configuration inputs, such that a predetermined filter structure is dynamically configured; and a sequencer for discriminating said bits of said plurality of mode selection registers, wherein said selection of at least one of said plurality of selectable filter modules comprises only those selectable filter modules selected by said discriminated bits.