Apparatuses and methods for configuring I/Os of memory for hybrid memory modules
First Claim
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1. A method, comprising:
- receiving, at a memory module, a command initiated by a host device to operate the memory module in a mode that is based at least in part on a power failure event, wherein the mode of operation comprises communicating data from a synchronous dynamic random-access memory (SDRAM) of the memory module to a non-volatile memory (NVM) of the memory module for the power failure event;
transferring the data from the SDRAM to the NVM via a control circuit of the memory module in response to the command; and
programming, by the memory module, a mode register of the SDRAM with information that configures the SDRAM to operate according to the mode of operation, wherein the programming is based at least in part on transferring the data from the SDRAM to the NVM;
avoiding command signaling from the host while in the mode of operation; and
transferring the data from the NVM back to the SDRAM via the control circuit based at least in part on a reapplication of power to the memory module.
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Abstract
Apparatuses, hybrid memory modules, memories, and methods for configuring I/Os of a memory for a hybrid memory module are described. An example apparatus includes a non-volatile memory, a control circuit coupled to the non-volatile memory, and a volatile memory coupled to the control circuit. The volatile memory is configured to enable a first subset of I/Os for communication with a bus and enable a second subset of I/O for communication with the control circuit, wherein the control circuit is configured to transfer information between the volatile memory and the non-volatile memory.
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Citations
16 Claims
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1. A method, comprising:
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receiving, at a memory module, a command initiated by a host device to operate the memory module in a mode that is based at least in part on a power failure event, wherein the mode of operation comprises communicating data from a synchronous dynamic random-access memory (SDRAM) of the memory module to a non-volatile memory (NVM) of the memory module for the power failure event; transferring the data from the SDRAM to the NVM via a control circuit of the memory module in response to the command; and programming, by the memory module, a mode register of the SDRAM with information that configures the SDRAM to operate according to the mode of operation, wherein the programming is based at least in part on transferring the data from the SDRAM to the NVM; avoiding command signaling from the host while in the mode of operation; and transferring the data from the NVM back to the SDRAM via the control circuit based at least in part on a reapplication of power to the memory module. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus, comprising:
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a synchronous dynamic random-access memory (SDRAM); a non-volatile memory (NVM) coupled with the SDRAM; a control circuit coupled between the NVM and the SDRAM and configured operate in a plurality of modes and to transfer the data from the SDRAM to the NVM via the control circuit in response to a power failure event; and a mode register coupled with the SDRAM and programmable, by the control circuit, with information that configures the SDRAM to operate according to one of the modes of operation based at least in part on the power failure event, wherein the control circuit is configured to transfer the data from the NVM back to the SDRAM based at least in part on a reapplication of power to the apparatus. - View Dependent Claims (8, 9, 10, 11)
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12. An apparatus, comprising:
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a controller configured to receive a command initiated by a host device to operate in a mode that is based at least in part on a power failure event, wherein the mode of operation comprises communicating data from a synchronous dynamic random-access memory (SDRAM) to a non-volatile memory (NVM) for the power failure event; a plurality of SDRAMs coupled with the control logic; an NVM coupled with the plurality of SDRAMs via the control logic; and a plurality of mode registers coupled with the SDRAMs and programmable, by the controller, with information that configures the plurality of SDRAMs to operate according to the mode of operation of a plurality of modes of operation, wherein the controller is configured to; transfer the data from the plurality of SDRAMs to the NVM based at least in part on the power failure event; and transfer the data from the NVM to one or more SDRAMs of the plurality of SDRAMs based at least in part on a reapplication of power to the circuit. - View Dependent Claims (13, 14, 15, 16)
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Specification