Viavi Xgig User Manual page 288

Chapter 13, Configuring Xgig TraceView
Table 21: SAS -3, Speed Negotiation Decodes (continued)
Speed Negotiation Decode
Train_Tx SNW End
RCDT (Rate Change Delay
Time) within spec
RCDT (Rate Change Delay
Time) outside spec
SNTT (Speed Negotiation
Transmit time) within spec
SNTT (Speed Negotiation
Transmit time) outside spec
ATT (Actual Training time) within
spec
ATT (Actual Training time)
outside spec
SAS Phy reset problem
Speed Negotiation Begin
Speed Negotiation End
274
Event Description
This event marks the end of the Transmitter training-SNW speed
negotiation window at 12.0Gbps rate
A SAS device shall send D.C Idle for 750000 OOBI (nominal value =
500 us) during the RCDT phase of a SAS speed negotiation window
time. This event is set when the measured RCDT value lies within
this range: 492.5 us < RCDT < 507.5 us.
A SAS device shall send D.C Idle for 750000 OOBI (nominal value =
500 us) during the RCDT phase of a speed negotiation window time.
This event is set when the measured RCDT time falls within this
range RCDT time <= 492.5 us or RCDT time >= 507.5 us.
A SAS device shall send ALIGN(0) or ALIGN(1) for 163840 OOBI
(nominal value = 109.2 us) during the SNTT phase of a SAS speed
negotiation window time. This event is set when the measured SNTT
time lies within this range: 102.5 us < SNTT < 117.5 us
A SAS device shall send ALIGN(0) or ALIGN(1) for 163840 OOBI
(nominal value = 109.2 us) during the SNTT phase of a SAS speed
negotiation window time. This event is set when the measured SNTT
time <= 102.5 us or SNTT time >= 117.5 us.
This event is set when the measured value of ATT is within TLT
(Training Lock Time) which is defined to be 28497920 OOBI or ~
18.998613 ms.
This event is set when the measured value of ATT is not within TLT
(Training Lock Time) which is defined to be 28497920 OOBI or ~
18.998613 ms.
This event is set when SAS-2 phy reset problem condition is detected
on a SAS link.
This event marks the beginning of the Speed Negotiation window.
This event marks the end of the Speed Negotiation window.
Filter And Hide
Xgig Analyzer User's Guide