Bootable volatile memory device, memory module and processing system comprising bootable volatile memory device, and method of booting processing system using bootable volatile memory device

摘要

A bootable volatile memory device comprises a volatile memory area configured to be written to and read from by a host processor, a boot code area configured to store bootstrap code before a boot procedure is performed by the host processor, a first chip select terminal configured to output a signal used as a chip select signal where the host processor performs the boot procedure by reading the bootstrap code from the boot code area, and a second chip select terminal configured to output a signal used as a chip select signal where the host processor writes and reads data to and from the volatile memory area.

主权项

1. A bootable volatile memory device comprising:
a volatile memory area configured to be written to and read from by a host processor; a boot code area configured to store bootstrap code before a boot procedure is performed by the host processor; a first chip select terminal configured to receive a signal used as a chip select signal where the host processor performs the boot procedure by reading the bootstrap code from the boot code area; and a second chip select terminal configured to receive a signal used as a chip select signal where the host processor writes and reads data to and from the volatile memory area; wherein the bootstrap code is copied from a nonvolatile memory to the boot code area by a control unit before the boot procedure starts; and wherein the control unit causes a power-on reset to be performed on the host processor after the bootstrap code is copied from the nonvolatile memory to the boot code area.