A computing system includes a host, a first electronic device connected to the host, and a second electronic device that communicates with the host through the first electronic device. The first electronic device requests a command written in a submission queue of the host based on a doorbell transmitted from the host, stores the command transmitted from the host, requests write data stored in a data buffer of the host, and stores the write data of the data buffer transmitted from the host.

A memory controller may include: a request checker identifying memory devices corresponding to requests received from a host among the plurality of memory devices and generating device information on the identified memory devices to perform operations corresponding to the requests; a dummy manager outputting a request for controlling a dummy pulse to be applied to channels of selected memory devices according to the device information among the plurality of channels; and a dummy pulse generator sequentially applying the dummy pulse to the channels coupled to the selected memory devices, based on the request for controlling the dummy pulse. A memory controller may include an idle time monitor outputting an idle time interval of the memory device and a clock signal generator generating a clock signal based on the idle time interval and outputting the clock signal to the memory device through the channel to perform a current operation.

A memory controller may include: a request checker identifying memory devices corresponding to requests received from a host among the plurality of memory devices and generating device information on the identified memory devices to perform operations corresponding to the requests; a dummy manager outputting a request for controlling a dummy pulse to be applied to channels of selected memory devices according to the device information among the plurality of channels; and a dummy pulse generator sequentially applying the dummy pulse to the channels coupled to the selected memory devices, based on the request for controlling the dummy pulse. A memory controller may include an idle time monitor outputting an idle time interval of the memory device and a clock signal generator generating a clock signal based on the idle time interval and outputting the clock signal to the memory device through the channel to perform a current operation.

A method for managing communication between a Universal Flash Storage (UFS) device and a UFS host includes determining at least one path of payload data flow along at least one of a transmission lane of the UFS host and a transmission lane of the UFS device. Based on the determined at least one path of the payload data flow, the method includes initiating, by operating at least one of the UFS host and the UFS device, at least one Hibernate state entry action. Further, the method includes initiating, by operating the at least one of the UFS host and the UFS device, at least one Hibernate state exit action after completion of transfer of a pre-determined number of data frames of the payload data between the UFS host and the UFS device.

A system includes a memory and a processor in communication with the memory. The processor is configured to execute a dependency mixing function that includes a first descriptor address of a descriptor and an artificial dependency. The dependency mixing function sets a second descriptor address as a dependency of a validity value. The processor is also configured to output a result from the dependency mixing function. When a respective validity value is valid, the second descriptor address is set to the first descriptor address. Responsive to the validity value being valid, the processor is configured to access the descriptor through the second descriptor address.

Provided is a controller which controls a plurality of memory dies. The controller may include: a processor suitable for generating interleaved read commands based on read requests from a host; a memory interface suitable for acquiring the read commands and a host-requested order of the read commands from the processor, controlling page read operations on the plurality of memory dies in response to the read commands, and acquiring data chunks corresponding to read requests from memory dies whose page read operations are completed, according to the host-requested order; and a host interface suitable for providing the host with responses to the read requests according to the order in which the data chunks are acquired.

An apparatus including a plurality of set arbitration circuits and a die arbitration circuit. The set arbitration circuits may each be configured to receive first commands and second commands and comprise a bank circuit configured to queue bank data in response to client requests and a set arbitration logic configured to queue the second commands in response to the bank data. The die arbitration circuit may be configured to receive the commands from the set arbitration circuits and comprise a die-bank circuit configured to queue die data in response to the client requests and a die arbitration logic configured to queue the second commands in response to the die data. Queuing the bank data and the die data for the second commands may maintain an order of the client requests and prioritize the first commands corresponding to a current controller over the first commands corresponding to a non-current controller.

A memory controller may include: a request checker identifying memory devices corresponding to requests received from a host among the plurality of memory devices and generating the identified device information on memory devices to perform operations corresponding to the requests; a dummy manager outputting a request for controlling a dummy pulse to be applied to channels of selected memory devices according to the device information among the plurality of channels; and a dummy pulse generator sequentially applying the dummy pulse to the channels coupled to the selected memory devices, based on the request for controlling the dummy pulse. A memory controller may include an idle time monitor outputting an idle time interval of the memory device and a clock signal generator generating a clock signal based on the idle time interval and outputting the clock signal to the memory device through the channel to perform a current operation.

A memory device configured to perform in-memory processing includes a plurality of in-memory arithmetic units each configured to perform in-memory processing of a pipelined arithmetic operation, and a plurality of memory banks allocated to the in-memory arithmetic units such that a set of n memory banks is allocated to each of the in-memory operation units, each memory bank configured to perform an access operation of data requested from the in-memory arithmetic units while the pipelined arithmetic operation is performed. Each of the in-memory arithmetic units is configured to operate at a first operating frequency that is less than or equal to a product of n and a second operating frequency of each of the memory banks.

Described apparatuses and methods relate to a memory-flow control register for a memory system that may support a nondeterministic protocol. To help manage the flow of memory requests in a system, a memory device can include logic, such as a hardware register, that can store values indicative of a total number of memory requests that are serviceable by the memory device at a time. The logic can be configured by device manufacturers during assembly. The manufacturers can determine the limits or capabilities of the system, based on the components and structures, and publish the capabilities, including QoS, based on the limits. When the memory device is connected to a host, the host can read the values and limit the number of memory requests sent to the device based on the values. Accordingly, the memory-flow control register can improve latency and bandwidth in accessing a memory device over an interconnect.