APPARATUS AND METHOD FOR PER MEMORY CHIP ADDRESSING

    公开(公告)号:US20220276958A1

    公开(公告)日:2022-09-01

    申请号:US17747950

    申请日:2022-05-18

    Abstract: A memory chip is described. The memory chip includes self identification circuitry to self identify the memory chip. The self identification circuitry is to determine a resistance of a resistor and correlate the memory chip's identity to the resistance. A registering clock driver (RCD) chip is described. The RCD chip includes a controller. The controller is to receive provisional IDs (PIDs) from memory chips on a same memory module as the RCD chip. The controller is to program the memory chips with respective logical IDs (LIDs) based on a correlation of the PIDs and the LIDs.

    REFERENCE VOLTAGE TRAINING PER PATH FOR HIGH SPEED MEMORY SIGNALING

    公开(公告)号:US20210326041A1

    公开(公告)日:2021-10-21

    申请号:US17359423

    申请日:2021-06-25

    Abstract: In a memory system, reference voltage training per path provides the capability to train receiver and transmitter reference voltages to optimal values based on selected feedback per path from the memory device. Training receiver reference voltages to an optimal receiver reference voltage per path includes programming dedicated mode registers that enable a local receiver voltage reference adjuster circuit to adjust the receiver reference voltage per path to the optimal receiver reference voltage per path. Transmitter reference voltage training includes the capability to also train an optimal input timing delay for an optimal transmitter reference voltage. Reference voltage training can be performed by a host component and/or a test system having access to the selected feedback per path of the memory device undergoing training.

    REFERENCE VOLTAGE ADJUSTMENT PER PATH FOR HIGH SPEED MEMORY SIGNALING

    公开(公告)号:US20210327524A1

    公开(公告)日:2021-10-21

    申请号:US17359442

    申请日:2021-06-25

    Abstract: In a memory system, receiver reference voltage adjustment per path provides the capability to adjust receiver reference voltages on a per path basis. Adjustment of receiver reference voltages for the memory device to an optimal receiver reference voltage per path is accomplished with dedicated mode registers and a local receiver voltage reference adjuster circuit in the memory device for each data path. The optimal receiver reference voltage is determined during training based on selected feedback per path from the memory device. The dedicated mode registers contain adjustment values that were previously programmed during training, and include adjustments steps to add to or subtract from a global receiver reference voltage for all paths until reaching the optimal receiver reference voltage for a current path.

    UNIDIRECTIONAL INFORMATION CHANNEL TO MONITOR BIDIRECTIONAL INFORMATION CHANNEL DRIFT

    公开(公告)号:US20200233821A1

    公开(公告)日:2020-07-23

    申请号:US16827205

    申请日:2020-03-23

    Abstract: An N-bit bus includes (N−1) bidirectional interfaces to couple to (N−1) bidirectional signal lines to exchange (transmit and receive) signals between companion devices. The bus includes two unidirectional signal line interfaces. The first is a unidirectional receive interface to couple to a unidirectional signal line to receive signals from the companion device. The second is a unidirectional transmit interface to couple to a unidirectional signal line to transmit signals to the companion device. The bus provides N signal lines for the N-bit bus in each direction, with an additional “backwards facing” signal line. The backwards facing signal line can allow the devices to prepare for a switch in the direction of the N-bit bus.

    MEMORY BUS MR REGISTER PROGRAMMING PROCESS
    8.
    发明申请

    公开(公告)号:US20200065266A1

    公开(公告)日:2020-02-27

    申请号:US16529700

    申请日:2019-08-01

    Abstract: A method performed by a memory chip is described. The method includes receiving an activated chip select signal. The method also includes receiving, with the chip select signal being activated, a command code on a command/address (CA) bus that identifies a next portion of an identifier for the memory chip. The method also includes receiving the next portion of the identifier on a portion of the memory chip's data inputs. The method also includes repeating the receiving of the activated chip select signal, the command code and the next portion until the entire identifier has been received and storing the entire identifier in a register.

    MEMORY BUS MR REGISTER PROGRAMMING PROCESS
    9.
    发明申请

    公开(公告)号:US20190095361A1

    公开(公告)日:2019-03-28

    申请号:US15718346

    申请日:2017-09-28

    CPC classification number: G06F13/1663 G06F1/10 G06F13/1689

    Abstract: A method performed by a memory chip is described. The method includes receiving an activated chip select signal. The method also includes receiving, with the chip select signal being activated, a command code on a command/address (CA) bus that identifies a next portion of an identifier for the memory chip. The method also includes receiving the next portion of the identifier on a portion of the memory chip's data inputs. The method also includes repeating the receiving of the activated chip select signal, the command code and the next portion until the entire identifier has been received and storing the entire identifier in a register.

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