WRITE STRATEGY TUNING METHOD USING GRADIENT METHOD

摘要

A write strategy tuning method using a gradient method is provided to reduce a tuning time and effort. The number of variables for writing a write strategy table is set up, and the tuning order of the variables is determined. Initial values of the variables are set up. Corresponding variable values are changed in the determined tuning order, and a value in which the least jitter is detected is determined. The number of the variables is set up as at least one or more. The variables include a 'Tsfp' variable, a 'Tefp' variable, a 'Tclp' variable, a 'Tmp' variable, a 'Tlp' variable, a 'Pw' variable, and an 'Er' variable.