Agilent Technologies, Inc.
Agilent Technologies, Inc. 26 SATA PHY, TSG & OOB Test MOI v.1.1 Revision 1.4
Test TSG-05 - Rise/Fall Imbalance (Obsolete)
Purpose: To verify that the Rise/Fall Imbalance of the Product Under Test’s (PUT’s) transmitter is within the
conformance limits.
References:
[1] Serial ATA Revision 3.0, 7.2.1, Table 31 – Transmitted Signal Requirements
[2] Ibid, 7.2.22.16 – TX Rise/Fall Imbalance
[3] Ibid, 7.4.19 – TX Rise/Fall Imbalance
[4] SATA Interoperability Program Unified Test Document, 2.15.5 – Rise/Fall Imbalance
[5] Pre-Test MOI
Resource Requirements:
Same as for TSG-01.
See appendix A for details.
Last Template Modification: March 25, 2009 (Version 1.02)
Discussion:
Reference [1] specifies the Transmitted Signal conformance limits for SATA products. This specification
includes conformance limits for the Rise/Fall Imbalance. Reference [2] provides the definition of this term
for the purposes of SATA testing. Reference [3] defines the measurement requirements for this test.
Rise/Fall imbalance is measured with LFTP. References [2] and [3] both define two values to be computed,
for each pattern. The two values compare TX+ rise to TX- fall, and TX- rise to TX+ fall. The results are
expressed as a percentage of the worst case of the two items being compared. The MEAN R/F Imbalance is
reported as the final result. This test requirement is only applicable to products running at 3Gbps.
Test Setup:
1. The N5411B SATA compliance software will prompt for LFTP when it needs those patterns. When
prompted, follow the procedures in reference [5] to enable those BIST-TAS patterns. Or keep the products
in BIST-L.
2. Plug the test fixture into the products. The test fixture is connected to channels 1 and 3 of the scope by
two 36” SMA cables (Rosenberger or equivalent). OBSERVE the signal on the scope. If it is correct, press
OK in the N5411B prompt. If not, the products did not properly handle BIST Activate FIS; a non-standard
way to make it produce the desired pattern will be required.
Test Procedure:
This parameter is covered by Agilent Technologies, Inc. N5411B automated SATA compliance software,
revision 1.02 or later. Either “PASS” or “FAIL” is shown for the rise/fall imbalance test in the report
generated at the completion of the testing.
Observable Results:
The Rise/Fall Imbalance value shall be less than 20% for Gen2i and Gen2m products.
Possible Problems:
Some products may not support disconnect during the process of enabling BIST and testing. For these
products, refer to the Disconnect sections of reference [5] for setup requirement.
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Komentarze do niniejszej Instrukcji