嵌入式可编程存储器设计中的选择性寄存方法
doi: 10.3724/SP.J.1146.2008.01544
A Selective Registering Technique for Design of an Embedded Programmable Memory
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摘要: 该文提出一种选择性寄存的方法用于解决同步双端口存储器IP同时对同一地址进行读写操作时造成的读出数据丢失的问题。利用该方法,通过使用同步双端口存储器IP和标准单元来设计嵌入式可编程存储器,可减小设计的复杂度、增强设计的可移植性,从而大大缩短嵌入式可编程存储器的开发周期。该文设计的嵌入式可编程存储器采用SMIC 0.18 m 1P6M CMOS工艺流片。测试结果表明,与相近工艺尺寸、相同存储容量的全定制嵌入式可编程存储器相比,它们在功能上兼容,在性能上相当。Abstract: A selective registering method is proposed to solve the problem of data loss in readout caused by simultaneously accessing both the read and write ports at the same address of a synchronous dual-port memory IP. Using this method to design an embedded programmable memory with the synchronous dual-port memory IP gives rise to reducing the implementing complexity and further improving the designs migration capabilities. Thus the research and development time can be shortened dramatically. According to the measurement results, such an embedded programmable memory fabricated in SMIC 0.18 ?m 1P6M CMOS process has achieved some comparable performance for the compatible functions with the reference to those full custom embedded programmable memories based on the close processes.
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