Teledyne-lecroy QPHY-LPDDR2 Manuel d'utilisateur télécharger pdf (Page 31)

QPHY-LPDDR2 Software Option

QPHY-LPDDR2-OM-G Rev B

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

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Teledyne-lecroy QPHY-LPDDR2 Manuel d'utilisateur Page 31