Teledyne LeCroy QPHY-DDR2 - Manual (Page 27)

QPHY-DDR2 Software Option
QPHY-DDR2-OM-E Rev A
27
QPHY-DDR2 TEST CONFIGURATIONS
Configurations include variable settings and limit sets as well, not just test selections. See the section for a
description of each variable value and its default value. See the QPHY-DDR2 Limit Sets section for more
information about the limit sets.
1) Clock tests DDR2-667 (1 Probe)
This configuration runs all of the clock tests. All of the variables are set to their defaults. The limit set in use is
DDR2-667. The tests run are:

tCK(avg)

tCK(abs)

tCH(avg)

tCL(avg)

tCH(abs)

tCL(abs)

tJIT(duty)

tJIT(per)

tJIT(CC)

tERR(n per)
2) CKdiff-DQse-DQSdiff 667 Write Burst (3 probes)
This configuration runs all of the tests that are run on write bursts of the DDR2 signals in which 3 probes are
required. All of the variables are set to their defaults. The limit set in use is DDR2-667. The tests run are:

Eye Diagram – Write Bursts (Inputs)

SlewR

SlewF

VIH(ac)

VIH(dc)

VIL(ac)

VIL(dc)

VSWING

AC Overshoot Peak Amplitude

AC Overshoot Area above VDDQ

AC Undershoot Peak Amplitude

AC Undershoot Area below VSSQ

tDQSS

tDQSH

tDQSL

tDSS

tDSH