MEMORY SYSTEM FOR MIRRORING DATA

摘要

A memory system is disclosed, which may include a memory unit of a first type, susceptible to loss of data from corrupting events, and a memory unit of a second type, less susceptible to loss of data from corrupting events than the memory unit of the first type, and a mirrored memory interface (MMI). The MMI may be coupled to a memory controller, the memory unit of the first type, and the memory unit of the second type. The MMI may, in response to a memory controller write command, receive data from the memory controller and write the data to the memory unit of the first type and to the memory unit of the second type. The MMI may also, in response to a memory controller read command, read data from the memory unit of the first type and send the data to the memory controller.

主权项

1. A memory system comprising:
a memory unit of a first type that is susceptible to loss of data from corrupting events of a particular type; a memory unit of a second type that is less susceptible to loss of data from corrupting events of the particular type than the memory unit of the first type; a mirrored memory interface coupled to:
a memory controller, through a first memory bus;the memory unit of the first type, through at least one memory channel; andthe memory unit of the second type through a second memory bus; the mirrored memory interface configured to:
in response to a write command from the memory controller, receive data from the memory controller and write the data into the memory unit of the first type and into the memory unit of the second type, andin response to a read command from the memory controller, read data from the memory unit of the first type and send the data to the memory controller.