Teledyne LeCroy SAS_SATA InFusion - Users Manual - Manual (Page 38)

Version 2.0 SAS InFusion User Manual
24
LeCroy Corporation
Figure 25 Restart InFusion Screen
Click Yes. The InFusion device will temporarily disappear from the network (and from
the list of devices in the Device List), and then will reappear once it has restarted.
An explanation of some of the options available in Device Configuration is as follows:
•
SATA Hold Handling. Default setting is enabled. When enabled, InFusion
acts to maintain the data link integrity by intelligently managing HOLD
conditions. When disabled is selected,
InFusion simply retransmits traffic
and does not attempt to manage HOLD conditions. For more on this issue,
see “SATA Hold Handling in SAS InFusion” on page 25.
•
Scramble data to Target. Default setting is enabled. When enabled,
InFusion will scramble frame data going to the target device as specified in
the SAS specification. When disabled, the scrambler is bypassed.
•
Descramble data from Target. Default setting is enabled. When enabled,
InFusion will descramble frame data coming from the target as specified in
the SAS specification. When disabled, the descrambler will be bypassed.
Data dword matchers will attempt to match scrambled data, just as if it had
been received on the line.
•
Scramble data to Initiator. Default setting is enabled. When enabled,
InFusion will scramble frame data going to the initiator device as specified in
the SAS specification. When disabled, the scrambler is bypassed.
•
Descramble data from Initiator. Default setting is enabled. When enabled,
InFusion will descramble frame data coming from the initiator as specified in
the SAS specification. When disabled, the descrambler will be bypassed.
Data dword matchers will attempt to match scrambled data, just as if it had
been received on the line.
•
Swing to Initiator. Default setting is Normal. Controls the peak-to-peak
voltage level of the signal sent by InFusion to the Initiator. Normal is 440mV
to 660mV peak-to-peak. High is 800mV to 1200mV.
•
Swing to Target. Default setting is Normal. Controls the peak-to-peak
voltage level of the signal sent by InFusion to the Target. Normal is 440mV
to 660mV peak-to-peak. High is 800mV to 1200mV.
•
Spread Spectrum Clock to Initiator. Default setting is Disabled. When
disabled, InFusion uses a normal (fixed frequency) clock to transmit traffic to
the Initiator. When enabled,
InFusion uses a spread spectrum clock, where
the clock frequency varies over time through a small range of frequencies.
The intent of a spread spectrum clock is to reduce interference with other
devices that might be sensitive to the fixed clock frequency.