A DDR SDRAM INTERFACE EMPLOYING EXITING SDR SDRAM CONTROLLER
Original Publication Date: 2004-Feb-16
Included in the Prior Art Database: 2004-Feb-16
Double Data Rate (DDR) SDRAMs have gained popularity over the years and will soon become the memory of choice because of continuing decline in price. Most microprocessors’ built-in Single Data Rate (SDR) SDRAM controllers are unable to communicate with DDR SDRAM devices. An inexpensive solution is to use the existing embedded SDRAM controller to interface with DDR SDRAMs. This paper discusses an interface adaptor concept to enable SDR SDRAM controller to manage DDR SDRAMs.