Random
Random numbers are generated from a seed.
<ul>
<li> seed = 0 the same sequence of pseudo-random numbers
each time
<li> seed = time different sequence each time
</ul>
One_pass
For each address, performs a write followed by a read and compare.
Block_transfer
For the block of addresses, performs a write followed by a read and
compare.
There is a maximum value of size of block depending on program
version.
This is much quicker than the single transfer tests for the CFI.