Marvellworld Trade Ltd.

Marvell International Limited

Jungil Park

Hyunsuk Shin

Chi Kong Lee

Siu-Hung Fred Au

Fei Sun

Siu-Hung Frederick Au

Chih-Ching Chen

Tao Yu

Wei Xu

Saswat Mishra

Jinjin He

The present disclosure describes methods and apparatus for implementing a signature-based sleep recovery operation flow for booting a system-on-chip (SoC). When the SoC begins its normal boot flow, a controller retrieves a sleep recovery signature from a register and compares the retrieved sleep recovery signature to a default signature. If the sleep recovery signature matches the default signature, the SoC enters a ROM checksum fail debug flow and, upon satisfying the requirements of the ROM checksum fail debug flow, enters a sleep recovery boot flow, which restores the SoC to the operational state it was in prior to entering the sleep mode. If the sleep recovery signature does not match the default signature, the SoC continues with the normal boot flow or, by use of external pins, can be forced into a normal debug mode flow so that the boot code can be debugged.

Signature-based sleep recovery operation flow

A system including a non-volatile semiconductor memory (NVSM), an interface module and a control module. The NVSM stores first and second blocks of data. The first or second block of data is non-page based such that a size of the first block of data or a size of the second block of data is not an integer multiple of a page of data. The interface module transfers the first and second blocks of data during respectively a first data transfer event and a second data transfer event. The control module, based on descriptors, controls the first and second data transfer events such that the interface module transfers the first block of data between the interface module and the NVSM while transferring the second block of data between the interface module and the NVSM. The descriptors include respective sets of instructions for transferring the first and second blocks of data.

Method and apparatus for parallel transfer of blocks of data between an interface module and a non-volatile semiconductor memory

The present disclosure includes systems and techniques relating to management of bit line errors based on a stored set of data. In some implementations, a system can include a device including non-volatile solid state memory and a memory controller. The memory controller can be configured to identify, from the solid state memory of the device, one or more bit line errors for the device upon power up of the system, construct a set of data corresponding to the one or more bit line errors for the device, store the set of data, at least in part, in the device, and, upon a subsequent power up of the system, identify the one or more bit line errors for the device from the stored set of data.

Management of bit line errors based on a stored set of data

A storage drive including first, second, third, fourth and fifth modules. The first module is configured to control transfer of blocks of data between a host device and the storage drive. The second module is configured to transfer the blocks of data to and from a non-volatile semiconductor memory in the storage drive. The third module is configured to generate a first descriptor, which describes a transfer of blocks of data between the second module and the non-volatile semiconductor memory. The fourth module is configured to, according to the first descriptor, generate second descriptors. Each of the second descriptors corresponds to a respective one of the blocks of data. The fifth module is configured to generate instruction signals based on the second descriptors. The second module is configured to, based on the instruction signals, transfer the blocks of data between the first module and the non-volatile semiconductor memory.

Apparatus and method for generating descriptors to transfer data to and from non-volatile semiconductor memory of a storage drive

In accordance with an embodiment of the disclosure, systems and methods are provided for reducing an amount of peak power consumption in a device. In certain implementations, a first signal and a second signal are received, wherein the first signal and the second signal are indicative of amounts of power consumption in a device. The first signal is combined with the second signal to generate a combined signal, and at least a portion of the second signal is shifted in time to cause a combination of the first signal and the shifted portion to have a peak amplitude less than a peak amplitude of the combined signal.

Systems and methods for reducing peak power consumption in a solid state drive controller

A control system includes a control module configured to control data transfer events of blocks of data between an interface management module and a non-volatile semiconductor memory based on at least two descriptors for each one of the data transfer events. The non-volatile semiconductor memory is prepared for a read event or a program event of the data transfer event. The interface management module and the non-volatile semiconductor memory are configured to operate within a solid-state memory drive. A command management module is configured to generate a parameter signal based on the at least two descriptors. The interface management module is configured to generate instruction signals based on the parameter signal and transmit the instruction signals to the non-volatile semiconductor memory to perform the read event or the program event.

Interface management control systems and methods for non-volatile semiconductor memory

Methods, systems and computer program products for providing a sequencer that schedules job descriptors are described. The sequencer can manage the scheduling of the job descriptors for execution based on the availability of their respective segments and channels. For example, the sequencer can check the status of the segments, and identify one or more segments that are in busy or full state, or one or more segments that are in non-busy or empty state. Based on the status check, the sequencer can execute job descriptors out of order, and in particular, give priorities to job descriptors whose associated segments are available over job descriptors whose associated segments are in busy or full state.

Growing community of inventors

San Jose, CA, United States of America

Jungil Park