ADLINK aTCA-N700 - Manual (Page 33)

aTCA-RN720 User's Guide
33
• Loss of Signal (LOS): the device can control the de-assert threshold and the hysteresis
for the LOS. The detailed setting may be found from the following list of tables in the
datasheet.
Ö
Table 5-2: LOS Range Settings
Ö Table 5-3: LOS Threshold Control Register Addresses
Ö Table 5-4: LOS De-assert Threshold Positive & LOS De-assert Threshold Negative
Setting Register Address
Ö Table 5-5: LOS Hysteresis Setting Register Addresses
Ö Table 5-6: Typical LOS Threshold Settings (Range Select = Low, Hysteresis = 2)
Ö Table 5-7: Typical LOS Threshold Settings (Range Select = High, Hysteresis = 2)
Ö Table 5-8: LOS Indicator Register Addresses
• Channel Power Down and Output Enable/Disable: the device can control the channel
power down and output driver enable/disable via the I2C.Setting details can be found
from the following tables in the datasheet.
Ö
Table 5-9: Channel Power Down Enable/Disable Register Addresses
Ö Table 5-10: Output Driver Disable/Enable Register Addresses
• Data Rate Detection/Selection Enable/Disable: the device can configure either a
manual data rate selection or an automatic data rate selection, which has also an
enable/disable option. Setting details can be found from the following tables in the
datasheet.
Ö
Table 5-11: Recommended Register Settings for Infiniband
Ö Table 5-12: Lock Period Control Settings
Ö Table 5-13: Rate Period Control Settings
Ö Table 5-14: Automatic Data Rate Detection Enable/disable & Manual Data Rate
Setting
Ö Table 5-15: Automatic Data Rate Detect Block Power Down Register Addresses
Ö Table 5-16: Clock Divider Block Power Down Register Addresses
• Bypass Enable/Disable: the device can configure the input to bypass the internal
module and to go to the output directly which may be useful during test phase.
• Loop Bandwidth Control: the device can configure the Loop bandwidth of ranges
20MHz to 40MHz.
• Output Swing Control: the typical output swing range is in 385 mV
ppD
~ 1050 mV
ppD
in ten
steps.
• Output Mute Override: the output can be muted with an override enable/disable option.
• Output De-emphasis: Depending on the channel characteristics, the output de-
emphasis level can be adjusted. The post-tap de-emphasis range is 0 ~ 350 mV
ppD
and
the pre-tap de-emphasis range is 0 ~ 350 mV
ppD.
• Output Polarity Invert: The output signal polarity can be inverted with a register setting.
• Loss-of-Lock (LOL): The status of the PLL lock is visible through a register.