Abstract: Systems, methods, and apparatus for communication virtualized general-purpose input/output signals over a serial communication link A method performed at a transmitting device coupled to a communication link includes configuring general-purpose input/output (GPIO) state from a plurality of sources into a virtual general-purpose input/output word, identifying one or more destinations for the first GPIO word based on a mapping of the GPIO state to one or more devices coupled to a serial bus, and transmitting the first GPIO word to each destination.

Abstract: A multi-modulation scheme is provided that combines pulse-width modulation and phase modulation to transmit a plurality of GPIO signals as virtual GPIO signals.

Abstract: A multi-modulation scheme is provided that combines pulse-width modulation and phase modulation to transmit a plurality of GPIO signals as virtual GPIO signals.

Abstract: A multi-modulation scheme is provided that combines pulse-width modulation and phase modulation to transmit a plurality of GPIO signals as virtual GPIO signals.

Abstract: Systems, methods, and apparatus for communication virtualized general-purpose input/output signals over a serial communication link A method performed at a transmitting device coupled to a communication link includes configuring general-purpose input/output (GPIO) state from a plurality of sources into a virtual general-purpose input/output word, identifying one or more destinations for the first GPIO word based on a mapping of the GPIO state to one or more devices coupled to a serial bus, and transmitting the first GPIO word to each destination.

Abstract: A finite state machine is provided that both serializes virtual GPIO signals and deserializes virtual GPIO signals. The finite state machine frames the serialized virtual GPIO signals into frames each demarcated by a start bit and an end bit.

Abstract: A multi-modulation scheme is provided that combines pulse-width modulation and phase modulation to transmit a plurality of GPIO signals as virtual GPIO signals.

Abstract: A finite state machine is provided that both serializes virtual GPIO signals and deserializes virtual GPIO signals. The finite state machine frames the serialized virtual GPIO signals into frames each demarcated by a start bit and an end bit.

Abstract: A finite state machine is provided that both serializes virtual GPIO signals and deserializes virtual GPIO signals responsive to cycles of an external clock. The finite state machine frames the serialized virtual GPIO signals into frames each demarcated by a start bit and an end bit.

Abstract: A finite state machine is provided that both serializes virtual GPIO signals and deserializes virtual GPIO signals responsive to cycles of an external clock. The finite state machine frames the serialized virtual GPIO signals into frames each demarcated by a start bit and an end bit.

Abstract: A method and system for decoding a data symbol sequence that has been previously encoded using one or more unique code word polynomials in which at least one unique code word polynomial is used more than once. A set of 2d-1 unique branch metrics is computed, using the unique code word polynomials, where d is the number of unique code word polynomials. The computed set of 2d-1 unique branch metrics is stored in a memory. Path metrics are then calculated, based on the stored set of 2d-1 unique branch metrics. A decoded data symbol sequence is generated based on the computed path metrics.

Abstract: A Maximum Likelihood Sequence Estimation (MLSE) decoder that decodes an encoded sequence of data symbols includes a branch metric unit for computing branch metrics for each trellis stage of the encoded sequence, a path metric unit for computing a path metric for each trellis stage using the computed branch metrics, and an M-at-a-time traceback unit for performing an M-at-a-time traceback operation using the computed path metrics. The M-at-a-time traceback operation generates M decoded data symbols in a single M-at-a-time traceback operation.

Abstract: A method and system for decoding a data symbol sequence that has been previously encoded using one or more unique code word polynomials in which at least one unique code word polynomial is used more than once. A set of 2d-1 unique branch metrics is computed, using the unique code word polynomials, where d is the number of unique code word polynomials. The computed set of 2d-1 unique branch metrics is stored in a memory. Path metrics are then calculated, based on the stored set of 2d-1 unique branch metrics. A decoded data symbol sequence is generated based on the computed path metrics.