宜必思
计算机科学
信号(编程语言)
接口(物质)
实时计算
计算机硬件
电子工程
并行计算
工程类
生物
最大气泡压力法
古生物学
气泡
程序设计语言
作者
Matthew Leslie,Justin Butterfield,Randy Wolff
标识
DOI:10.1109/spi57109.2023.10145565
摘要
The inclusion of a receiver decision feedback equalizer (DFE) to Double Data Rate 5(DDRS) synchronous dynamic random access memory (SDRAM)s has increased the complexity of signal integrity (SI) simulation compared to previous DDR technologies. In response, the I/O Buffer Information Specification (IBIS) version 7.1 enables an IBIS algorithmic modeling interface (IBIS-AMI) receiver model to accept an external clock signal. A novel simulation flow is developed which accounts for both DQ (data) signals and their associated DQS (clock/strobe) signal in the evaluation of DDR5 data write and read operations. The effects of including DQS into SI simulation of DDR5 systems are discussed by examining the resulting eye diagrams. It is observed that for system timing margins, the SI quality of the strobe signal becomes just as important as the data signals.
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