Configuring command/address channel for memory

    公开(公告)号:US11449249B2

    公开(公告)日:2022-09-20

    申请号:US16674987

    申请日:2019-11-05

    Abstract: Methods, systems, and devices for memory operations that support configuring a channel, such as a command/address (C/A) channel, are described. A configuration of a C/A channel may be dynamically adapted based on power saving considerations, control information execution latency, or both. Configuring a C/A channel may include determining a quantity of pins, or a quantity of cycles, both for communicating control information over the C/A channel. The quantity of pins may be determined based on previous control information transmissions, characteristics of a memory device, or predicted control information transmissions, or any combination thereof in some cases. The determined quantity of pins, quantity of cycles, or both may be explicitly or implicitly indicated to other devices (e.g., that use the C/A channel).

    CONTROLLED HEATING OF A MEMORY DEVICE

    公开(公告)号:US20220171575A1

    公开(公告)日:2022-06-02

    申请号:US17677568

    申请日:2022-02-22

    Abstract: Methods, systems, and devices for controlled and mode-dependent heating of a memory device are described. In various examples, a memory device or an apparatus that includes a memory device may have circuitry configured to heat the memory device. The circuitry configured to heat the memory device may be activated, deactivated, or otherwise operated based on an indication of a temperature (e.g., of the memory device). In some examples, activating or otherwise operating the circuitry configured to heat the memory device may be based on an operating mode (e.g., of the memory device), which may be associated with certain access operations or operational states (e.g., of the memory device). Various operations or operating modes (e.g., of the memory device) may also be based on indications of a temperature (e.g., of the memory device).

    MODE-DEPENDENT HEATING OF A MEMORY DEVICE

    公开(公告)号:US20220122653A1

    公开(公告)日:2022-04-21

    申请号:US17564993

    申请日:2021-12-29

    Abstract: Methods, systems, and devices for controlled and mode-dependent heating of a memory device are described. In various examples, a memory device or an apparatus that includes a memory device may have circuitry configured to heat the memory device. The circuitry configured to heat the memory device may be activated, deactivated, or otherwise operated based on an indication of a temperature (e.g., of the memory device). In some examples, activating or otherwise operating the circuitry configured to heat the memory device may be based on an operating mode (e.g., of the memory device), which may be associated with certain access operations or operational states (e.g., of the memory device). Various operations or operating modes (e.g., of the memory device) may also be based on indications of a temperature (e.g., of the memory device).

    MULTI-LEVEL RECEIVER WITH TERMINATION-OFF MODE

    公开(公告)号:US20220058143A1

    公开(公告)日:2022-02-24

    申请号:US17464021

    申请日:2021-09-01

    Abstract: Methods, systems, and devices for multi-level receivers with various operating modes (e.g., on-die termination mode, termination-off mode, etc.) are described. Different modes may be utilized for receiving different types of signaling over a channel. Each mode may correspond to the use of a respective set of receivers configured for the different types of signaling. For example, a device may include a first set of receivers used to receive a first type of signal (e.g., with the channel being actively terminated) and a second set of receivers used to receive a second type of signal (e.g., with the channel being non-terminated). When communicating with another device, based on the type of signaling used for communications, either the first set of receivers or the second set of receivers may be enabled (e.g., through selecting a receiver path for the corresponding mode).

    Mode-dependent heating of a memory device

    公开(公告)号:US11238917B2

    公开(公告)日:2022-02-01

    申请号:US16579475

    申请日:2019-09-23

    Abstract: Methods, systems, and devices for controlled and mode-dependent heating of a memory device are described. In various examples, a memory device or an apparatus that includes a memory device may have circuitry configured to heat the memory device. The circuitry configured to heat the memory device may be activated, deactivated, or otherwise operated based on an indication of a temperature (e.g., of the memory device). In some examples, activating or otherwise operating the circuitry configured to heat the memory device may be based on an operating mode (e.g., of the memory device), which may be associated with certain access operations or operational states (e.g., of the memory device). Various operations or operating modes (e.g., of the memory device) may also be based on indications of a temperature (e.g., of the memory device).

    RECEIVE-SIDE CROSSTALK CANCELATION
    46.
    发明申请

    公开(公告)号:US20210397381A1

    公开(公告)日:2021-12-23

    申请号:US17462982

    申请日:2021-08-31

    Abstract: Methods, systems, and devices for receive-side crosstalk cancelation are described. A device that receives multiple signals over different transmission lines may include a circuit for canceling crosstalk. The circuit may include one or more capacitors or inductors that are coupled with the inputs of multiple receive circuits. The circuit may also include a set of resistors that are coupled with the receive circuits. In some cases, the device may dynamically configure the cancelation circuit to provide a particular bandwidth or strength of cancelation. In such cases, the device may configure the circuit autonomously or based on control information from another device.

    Transmission failure feedback schemes for reducing crosstalk

    公开(公告)号:US11144385B2

    公开(公告)日:2021-10-12

    申请号:US16538537

    申请日:2019-08-12

    Abstract: Systems, apparatuses, and methods for transmission failure feedback associated with a memory device are described. A memory device may detect errors in received data and transmit an indication of the error when detected. The memory device may receive data and checksum information for the data from a controller. The memory device may generate a checksum for the received data and may detect transmission errors. The memory device may transmit an indication of detected errors to the controller, and the indication may be transmitted using a line that is different than an error detection code (EDC) line. A low-speed tracking clock signal may also be transmitted by the memory device over a line different than the EDC line. The memory device may transmit a generated checksum to the controller with a time offset applied to the checksum signaled over the EDC line.

    BIT AND SIGNAL LEVEL MAPPING
    48.
    发明申请

    公开(公告)号:US20210224149A1

    公开(公告)日:2021-07-22

    申请号:US17150480

    申请日:2021-01-15

    Abstract: Methods, systems, and devices for bit and signal level mapping are described to enable a memory device to transmit or receive a multi-symbol signal that includes more than two (2) physical levels. Some cyclic redundancy check (CRC) calculations may generate one or more bits of CRC output per symbol of an associated signal and the output may be transmitted via a multi-symbol signal by converting one or more CRC output bit to a physical level of the signal. The conversion, or mapping, process may be performed such that the physical levels of the signal avoid a transition between a highest physical level and lowest physical level. For example, a modulation scheme or mapping process may be configured to map different values of CRC output bits to different physical levels, where the different physical levels are separated by one other physical level associated with the signal or the modulation scheme.

    TECHNIQUES FOR LOW POWER OPERATION
    49.
    发明申请

    公开(公告)号:US20210217458A1

    公开(公告)日:2021-07-15

    申请号:US17145066

    申请日:2021-01-08

    Abstract: Methods, systems, and devices for techniques for low power operation are described. A device may be configurable to operate in a first mode and a second mode, where the first mode may include transmitting using a first modulation scheme having two logic levels and the second mode may include transmitting using a second modulation scheme having three or more (e.g., four) logic levels. The device may identify a data symbol for transmission and select, from the first mode and the second mode, the first modulation scheme for the transmission. In some example, the device may determine which of the two modes to select based on a value stored at a mode register. Here, the value stored by the mode register may indicate to utilize the first modulation scheme associated with the first mode. Thus, the device may transmit the data symbol by a signal modulated by the first modulation scheme.

    MULTI-VOLTAGE OPERATION FOR DRIVING A MULTI-MODE CHANNEL

    公开(公告)号:US20200333871A1

    公开(公告)日:2020-10-22

    申请号:US16849746

    申请日:2020-04-15

    Abstract: Methods, systems, and devices for multi-voltage operation for driving a multi-mode channel are described. A transmitting device and a receiving device may be coupled via a channel, and the channel may support multiple modes such as a terminated mode and an unterminated mode. A driver may be coupled with the channel, and a voltage supply for the driver may be adjusted based on the mode of the channel, such as based on whether the channel is terminated or unterminated. Adjusting the voltage supply may result in similar or otherwise desirable voltage levels on the channel for each mode of the channel.

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