Teledyne LeCroy QPHY-DDR2 - Manual (Page 28)

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QPHY-DDR2-OM-E Rev A

tDS(base)

tDH(base)

tWPRE

tWPST
3) CKdiff-DQse-DQSdiff 667 Read Burst (3 probes)
This configuration runs all of the tests that are run on read 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 – Read Bursts (Outputs)

SoutR

SoutF

tSLMR

tDQSQ

tQHS

tQH

tDQSCK

tAC

tHZ(DQ)

tLZ(DQ)

tLZ(DQS)

tRPRE

tRPST
4) Eye Diagram (3 Probes Debug)
This configuration runs the Eye Diagram tests on both the read bursts and the write bursts. 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)

Eye Diagram – Read Bursts (Outputs)
5) All tests that require 4 Probes
This configuration runs all of the tests that require 4 probes. These are the tests where the DQS is probes single
ended, the CK is probes single ended, or the signal under test is an Address, Control or Data Mask line. All of the
variables are set to their defaults. The limit set in use is DDR2-667. The tests run are:

VID(ac)

VIX(ac)

VOX(ac)