Teledyne LeCroy QPHY-LPDDR2 - Manual (Page 31)

QPHY-LPDDR2 Software Option
QPHY-LPDDR2-OM-G Rev B
31
QPHY-LPDDR2 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-LPDDR2 Limit Sets section for
more information about the limit sets.
1) Clock tests LPDDR2-667 (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 LPDDR2-667. The tests run are:
•
tCK(avg)
• tCK(abs)
• tCK(min)
•
tCH(avg)
• tCH(abs)
• tCL(avg)
•
tCL(abs)
• tJIT(per)
• tJIT(CC)
•
tERR(n per)
2) CKdiff-DQse-DQSdiff 667 (3 probes)
This configuration runs all of the tests that are run on write bursts of the LPDDR2 signals in which 3
probes are required. All of the variables are set to their defaults. The limit set in use is LPDDR2-667. The
tests run are:
• Eye Diagram – Write Bursts (Inputs)
•
Eye Diagram – Read Bursts
• tDQSQ
• tQH
• tDS (base + derated)
• tDH (base + derated)
• tDQSH
• tDQSL
• tDQSS – min
• tDQSS – max
•
tDSS
• tDSH
• tWPST
• tWPRE
• tRPRE