How do you do a memory model preload?

Have you ever tried to read bursts of data from any memory model before even writing any data? If so, you had to encounter “x” from all read addresses. Of course, this ”x” is not valid data to be read.
Have you ever tried to read bursts of data from any memory model before even writing any data? If so, you had to encounter “x” from all read addresses. Of course, this ”x” is not valid data to be read.