| 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.
- Detail—Shows the PLL lock and pattern sync status, as shown in the PCIE Tab—PLL and Pattern Status figure.
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| Port |
Allows you to specify which interface to test. The following port test is available—PCIe x8 Gen3. |
| 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.
- Pre-emphasis tap
- 1st pre—Specifies the amount of pre-emphasis on the pre-tap of the transmitter buffer.
- 2nd pre—Specifies the amount of pre-emphasis on the second pre-tap of the transmitter buffer.
- 1st post—Specifies the amount of pre-emphasis on the first post tap of the transmitter buffer.
- 2nd post—Specifies the amount of pre-emphasis on the second post tap 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.
All PMA settings should be changed as in the XCVR Tab—Set PMA Values Window figure. |
| Data Type |
Specifies the type of data contained in the transactions. The following data types are available for analysis:
- prbs7—Selects pseudo-random 7-bit sequences.
- prbs15—Selects pseudo-random 15-bit sequences.
- prbs23—Selects pseudo-random 23-bit sequences.
- prbs31—Selects pseudo-random 31-bit sequences.
- HF—Selects highest frequency divide-by-2 data pattern 10101010.
- LF—Selects lowest frequency divide by 33 data pattern.
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| Error Control |
Displays data errors detected during analysis and allows you to insert errors:
- Detected Errors—Displays the number of data errors detected in the hardware.
- Inserted Errors—Displays the number of errors inserted into the transmit data stream.
- Insert—Inserts a one-word error into the transmit data stream each time you click the button. Insert is only enabled during transaction performance analysis.
- Clear—Resets the Detected Errors and Inserted Errors counters to zeroes.
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| Run Control |
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