Teledyne LeCroy QPHY-LPDDR2 - Manual (Page 37)

QPHY-LPDDR2 Software Option
QPHY-LPDDR2-OM-G Rev B
37
Select Signal Under Test if many
These variables allow the user to specify which signals to tests for particular tests. The default state is to
tests all of the pertinent signals. For the ADD/CTRL tests the default is ADD and for the DM tests the
default is DM
Note: Register vendor data sheets specify the maximum over/undershoot induced in specific RDIMM applications. DRAM vendor
data sheets also specify the maximum overshoot/undershoot that their DRAM can tolerate. This allows the RDIMM supplier to
understand whether the DRAM can tolerate the overshoot that the register induces in the specific RDIMM.