Hybrid solid-state disk (SSD)/hard disk drive (HDD) architectures

摘要

A system including a packaging substrate and first and second integrated circuits arranged on the packaging substrate. The first integrated circuit includes a dynamic random access memory. The second integrated circuit includes a system-on-chip, which includes a hard disk controller to control a hard disk drive, a solid-state disk controller to control flash memory arranged external to the packaging substrate, and a dynamic random access memory controller to communicate with the dynamic random access memory. The hard disk controller and the solid-state disk controller access the dynamic random access memory via the dynamic random access memory controller. The dynamic random access memory controller is connected to the dynamic random access memory via the packaging substrate.

主权项

1. A system comprising:
a solid-state disk controller configured to (i) control flash memory and (ii) communicate with a host, wherein the solid-state disk controller includes (i) a first interface to interface a hard disk drive to the host and (ii) a second interface to interface with a dynamic random access memory arranged external to the solid-state disk controller; and a hard disk controller system-on-chip configured to (i) control the hard disk drive, (ii) communicate with the host via the first interface of the solid-state disk controller, and (iii) access the dynamic random access memory via the second interface of the solid-state disk controller, wherein the first interface of the solid-state disk controller interfaces the hard disk drive to the host via the hard disk controller system-on-chip.