摘要:
A memory interface circuit for read operations is described. The circuit includes one or more controller circuits, one or more read data delay circuits for providing CAS latency compensation for byte lanes. In the system, control settings for the read data delay circuits for providing CAS latency compensation are determined and set using controller circuits according to a dynamic calibration procedure performed from time to time. In the system, determining and setting the control settings for the read data delay circuits for providing CAS latency compensation is performed independently and parallely in each of a plurality of byte lanes.
摘要:
A memory module that includes a buffer and a plurality of synchronous memory devices. The memory module also includes bidirectional bus lines, and each of the synchronous memory devices has bidirectional data terminals. The buffer is configured to regenerate signals received on the bus lines for receipt by the synchronous memory devices, and to regenerate signals received from any one of the synchronous memory devices for receipt by the bus lines. The memory module may further include command lines and a clock line for providing commands and a clock signal to the synchronous memory devices via a command buffer. The combined data bus width of the memory module may be greater than the data bus width of any single one of synchronous memory device, and the total address space provided by the memory module may be larger than the data space for any single synchronous memory device.
摘要:
Providing command queuing in embedded memories is provided. In particular, aspects disclosed herein relate to a process through which a status of the queue is communicated to a host from a device. Aspects of the present disclosure use the command structure of the embedded Multi-Media Card (eMMC) standard, such that the host may determine a state of the queue in the device proximate a known end of an in-progress data transfer. In this manner, the host can select a task to commence after completion of a current data transfer while the current data transfer is still ongoing.
摘要:
Systems and methods for fraud monitoring in a payment service are disclosed. An exemplary system includes a first server being located at a first locale and routing a first series of transaction requests. The system includes a second server being located at a second locale and routing a second series of transaction requests. The transactions requests may or may not be associated with a single payment service user account. The system includes a distributed cache storing a set of transaction details of the two series of transaction requests. The system includes a risk service having access to the set of transaction details from the distributed cache. The risk service generates a fraud warning based on a result of a comparison of at least one transaction detail in the set of transaction details and at least one transaction detail of a new transaction request received by the first server.
摘要:
A method of operating a memory controller is disclosed. The method includes transmitting data signals to a memory device over each one of at least two parallel data links. A timing signal is sent to the memory device on a first dedicated link. The timing signal has a fixed phase relationship with the data signals. A data strobe signal is driven to the memory device on a second dedicated link. Phase information is received from the memory device. The phase information being generated internal to the memory device and based on a comparison between the timing signal and a version of the data strobe signal internally distributed within the memory device. A phase of the data strobe signal is adjusted relative to the timing signal based on the received phase information.
摘要:
A memory module that is couplable to a memory controller hub (MCH) of a host system includes a non-volatile memory subsystem, a data manager coupled to the non-volatile memory subsystem, a volatile memory subsystem coupled to the data manager and operable to exchange data with the non-volatile memory subsystem by way of the data manager, and a controller operable to receive read/write commands from the MCH and to direct transfer of data between any two or more of the MCH, the volatile memory subsystem, and the non-volatile memory subsystem based on the commands.
摘要:
According to one embodiment, a memory device includes a nonvolatile memory in which data write or data read is executed in units of a plurality of cells, and a controller configured to control the memory and to manage a memory space of the memory by dividing the memory space into a plurality of partitions.
摘要:
The present techniques provide systems and methods of controlling access to more than one open page in a memory component, such as a memory bank. Several components may request access to the memory banks. A controller can receive the requests and open or close the pages in the memory bank in response to the requests. In some embodiments, the controller assigns priority to some components requesting access, and assigns a specific page in a memory bank to the priority component. Further, additional available pages in the same memory bank may also be opened by other priority components, or by components with lower priorities. The controller may conserve power, or may increase the efficiency of processing transactions between components and the memory bank by closing pages after time outs, after transactions are complete, or in response to a number of requests received by masters.
摘要:
An electronic device for data processing is disclosed having a CPU (3), a Closely Coupled Memory (5), an external memory system (8), and a first clock unit (1) and second clock unit (9) for receiving a main clock signal (2) and converting the main clock signal (2) into a first clock signal (6) for at least the Central Processing Unit (3) and Closely Coupled Memory (5) and a second clock signal (10) for the external memory (8). The first clock signal has a first clock frequency and the second clock signal has a second clock frequency being higher than said first clock frequency and wherein the device is configured to switch per time unit the external memory for an active period Tactive in an active state and for a standby period Tstandby in a standby state to retrieve a predetermined amount of data from the external memory per time unit.
摘要:
Embodiments of the invention are generally directed to systems, methods, and apparatuses for the active training of memory command timing. In some embodiments, the CMD/CTL timing is actively trained using active feedback between memory modules and the memory controller. Other embodiments are described and claimed.