4.4.7. The FMCB Tab
|Status||Displays the following status information during a loopback test:
PLL lock—Shows the PLL locked or unlocked state.
Pattern sync—Shows the pattern synced or not synced state. The pattern is considered synced when the start of the data sequence is detected.
Details—Shows the PLL lock and pattern sync status:
|Port||Allows you to specify which interface to test. The following port tests are available:
|PMA Setting||Allows you to make changes to the PMA parameters that affect the active transceiver interface. The following settings are available for analysis:
Serial Loopback—Routes signals between the transmitter and the receiver.
VOD—Specifies the voltage output differential of the transmitter buffer.
Equalizer—Specifies the AC gain setting for the receiver equalizer in four stage mode.
DC gain—Specifies the DC gain setting for the receiver equalizer in four stage mode.
VGA—Specifies the VGA gain value.
|Data Type||Specifies the type of data contained in the transactions. The following data types are available for analysis:
|Error Control||Displays data errors detected during analysis and allows you to insert errors:
Start—Initiates the selected ports transaction performance analysis.
Note: Always click Clear before Start.
Stop—Terminates transaction performance analysis.
TX and RX performance bars—Show the percentage of maximum theoretical data rate that the requested transactions are able to achieve.
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