The invention relates to an LPDDR4X
simulation method and
system based on a statistics theory. The method comprises the steps that a single-
byte BYTE time domain simulation platform used for simulating LPDDR4X
signal transmission characteristics is constructed; routing
delay analysis is carried out on packaging and PCB channels corresponding to each
signal in the single-
byte BYTE,
time sequence inconsistency in
signal transmission is captured, and then the influence of phase
crosstalk noise on
eye height is captured; carrying out
pulse response analysis on the signal, and quantifying ISI
noise basic data caused by packaging and a PCB channel; independently analyzing the influence of
crosstalk noise on each signal to obtain direct influence data of noise on
eye height;
processing ISI noise basic data and direct influence data by utilizing an
MATLAB script, and extracting a main cursor
voltage value, an ISI noise amplitude and
crosstalk noise; according to the main cursor
voltage value, the ISI noise amplitude and the crosstalk noise, the final
eye pattern eye height is calculated. According to the method, the problem that a traditional
simulation method is insufficient in
eye pattern height evaluation is solved, and more accurate and efficient simulation support can be provided for high-speed low-power-consumption DDR design.