MEMORY SYSTEM AND INFORMATION PROCESSING DEVICE

摘要

According to embodiments a memory system is connectable to a host which includes a host controller and a host memory including a first memory area and a second memory area. The memory system includes an interface unit, a non-volatile memory, and a controller unit. The interface unit receives a read command and a write command. The controller unit writes write-data to the non-volatile memory according to the write command. The controller unit determines whether read-data requested by the read command is in the first memory area. If the read-data is in the first memory area, the controller unit causes the host controller to copy the read-data from the first memory area to the second memory area. If the read-data is not in the first memory area, the controller unit reads the read-data from the non-volatile memory and causes the host controller to store the read-data in the second memory area.

主权项

1. A memory system connectable to a host, the host including a host controller and a host memory comprising a first memory area and a second memory area, comprising:
an interface unit which receives a read command and a write command from the host; a non-volatile memory; and a controller unit which
writes write-data to the non-volatile memory according to the write command,determines whether read-data requested by the read command is in the first memory area,causes the host controller to copy the read-data from the first memory area to the second memory area when the read-data is in the first memory area, andreads the read-data from the non-volatile memory and causes the host controller to store the read-data read from the non-volatile memory in the second memory area when the read-data is not in the first memory area.