Patent ID: 7782683
Filing Date: 2010-08-24
Classification: G11C

Abstract:
1. A multi-port volatile memory device, comprising: a first port configured for data transfer to/from an external host system and the device; a volatile main memory core configured to store data received thereat and read requested stored data thereform; a volatile sub memory core configured to store data received thereat and read requested stored data therefrom; a main interface circuit coupled to the first port and configured to provide data to/from the volatile main memory core and the first port in a master mode and configured to provide data to/from the volatile sub memory core and the first port in a slave mode; a second port configured for data transfer to/from an external non-volatile memory device and the device; and a sub interface circuit coupled to the second port and configured to provide data to/from the volatile sub memory core and the second port in the slave mode.