Teledyne LeCroy QPHY-DDR2 - Manual (Page 4)

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QPHY-DDR2-OM-E Rev A
D1) Demo of All Clock tests ..................................................................................................................................... 29
D2) Demo of Eye Diagram (Debug) ......................................................................................................................... 30
D3) Demo of All tests ............................................................................................................................................... 30
D4) Demo of All CKdiff-DQSdiff-DQse tests ............................................................................................................ 30
QPHY-DDR2 VARIABLES ...................................................................................................... 31
General Variables ..................................................................................................................................................... 31
DUT Speed Grade in MT/s ............................................................................................................................... 31
DQ Signal Name ............................................................................................................................................... 31
DQS Signal Name ............................................................................................................................................. 31
Clock Signal Name ........................................................................................................................................... 31
DUT Power Supply VDDQ ................................................................................................................................ 31
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Probe Names ...................................................................................................................................................... 31
DQSp Signal Name ........................................................................................................................................... 31
DQSn Signal Name ........................................................................................................................................... 31
ADD/CTRL signal name.................................................................................................................................... 31
Clock Positive Signal Name .............................................................................................................................. 31
Clock Negative Signal Name ............................................................................................................................ 31
DM Signal Name ............................................................................................................................................... 31
Script Settings .......................................................................................................................................................... 31
Save Acquired Waveforms ............................................................................................................................... 31
Silent mode control ........................................................................................................................................... 32
Stop On Test to review results .......................................................................................................................... 32
Waveform Path ................................................................................................................................................. 32
Demo Settings .......................................................................................................................................................... 32
Use Stored Waveforms ..................................................................................................................................... 32
Recalled Waveform File Index (5 digits) ........................................................................................................... 32
Define format used to set trace names ............................................................................................................. 32
Use Stored Trace for Speed Grade .................................................................................................................. 32
Advanced Settings ................................................................................................................................................... 32
Clock Period per Screen Division ..................................................................................................................... 32
Number of cycles for Clock test ........................................................................................................................ 32
Max. Number Of Samples Per Clock Period .................................................................................................... 32
Configuration Specific Variables ............................................................................................................................... 33
XX Channel Gain .............................................................................................................................................. 33
XX Channel Index ............................................................................................................................................. 33
XX Channel Invert ............................................................................................................................................. 33
XX Channel Offset ............................................................................................................................................ 33
Select Signal Under Test if many ..................................................................................................................... 33
Previously measured tHP in seconds ............................................................................................................... 33
Max Overshoot Peak Amplitude ....................................................................................................................... 33
QPHY-DDR2 LIMIT SETS ....................................................................................................... 34
DDR2-400 ................................................................................................................................................................ 34
DDR2-533 ................................................................................................................................................................ 34
DDR2-667 ................................................................................................................................................................ 34
DDR2-800 ................................................................................................................................................................ 34
DDR2-1066 .............................................................................................................................................................. 34
QPHY-DDR2 TESTS ............................................................................................................... 34
Clock Tests ............................................................................................................................................................... 34
tCK(avg), Average Clock Period ................................................................................................................................. 34
tCK(abs), Absolute Clock Period ................................................................................................................................ 34
tCH(avg), Average High Pulse Width ......................................................................................................................... 35
tCL(avg), Average Low Pulse Width ........................................................................................................................... 35
tCH(abs), Absolute High Pulse Width ......................................................................................................................... 35