DDR memory and storage method

A storage method for storing data in a DDR memory having a plurality of memory cells which each have a prescribed word length, which comprises the following steps:

• (a) a first clock signal input is used to receive a system clock signal,
• (b) a second clock signal input is used to receive a data clock signal,
• (c) an instruction input is used to read in and decode a write instruction which is synchronized with the system clock signal,
• (d) a serial data input is used to read in serial data on a rising edge and on a falling edge of the data clock signal,
• (e) a serial-parallel converter is used to put together a prescribed number of data items from the data read in to give a prescribed number of words from data words having the prescribed word length, wherein an interface memory copying the at least one data word from the serial-parallel converter upon receipt of a copy signal which is synchronized with the data clock signal and outputting the at least one data word to a bus upon receipt of an output signal which is synchronous with the system clock signal.