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Using qualiphy ddr2 – Teledyne LeCroy QPHY-DDR2 User Manual

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QPHY-DDR2-OM-E Rev

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Figure 5. Burst write followed by burst read [JESD79-2E figure 41]

USING QUALIPHY DDR2

QualiPHY DDR2 guides the user, step-by-step, through each of the source tests described in JEDEC Standard
No. 79-2E. To do this, the user must setup a test session.

Users choose test configurations to run. There are several pre-loaded test configurations including:

1) Clock tests DDR2-667 (1 Probe)

2) CKdiff-DQse-DQSdiff 667 Write Burst (3 probes)

3) CKdiff-DQse-DQSdiff 667 Read Burst (3 probes)

4) Eye Diagram (3 Probes Debug)

5) All tests that require 4 Probes

D1) Demo of All Clock tests

D2) Demo of Eye Diagram (Debug)

D3) Demo of All tests

D4) Demo of All Ck-diff-DQSdiff-DQse tests

The pre-loaded configurations provide quick and easy ways to begin compliance testing. You can create your own
custom configurations (see the Customizing QualiPHY topic for details).

The variables are pre-loaded with the standard settings for compliance testing; however, the user may choose to
create their own configuration with the variables set as desired.