The SDRAM has become the chief choice of the buffer storage because of its high speed, great capacity, and low price;but due to its complex control timing, it cannot directly interface with DSP.

• 同步动态随机存储器(SDRAM)具有高速,大容量,价格低廉等优点,因而成为缓冲存储器的首选,但是SDRAM控制时序比较复杂,不能与DSP直接接口,这极大地限制了它的广泛应用。