Visible to Intel only — GUID: kri1529450667196
Ixiasoft
Visible to Intel only — GUID: kri1529450667196
Ixiasoft
5.3.5. The FMC+ Tab
This tab allows you to perform loopback tests on the FMC+ port, install FMC+ loopback daughter card and configure the FPGA with FMC+ image.
The following sections describe the controls on the FMC+ tab.
Status
- 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 details of PLL lock, pattern status and errors bits of each channel
Port
Allows you to specify which interface to test. The following port tests are available: XCVR and CMOS
PMA Setting
- Serial Loopback: Routes signals between the transmitter and the receiver.
- VOD: Specifies the voltage output differential of the transmitter buffer.
- Pre-emphasis tap:
- Pre-tap 1: Specifies the amount of pre-emphasis on the first pre-tap of the transmitter buffer.
- Pre-tap 2: Specifies the amount of pre-emphasis on the second pre-tap of the transmitter buffer.
- Pre-tap 3: Specifies the amount of pre-emphasis on the third pre-tap of the transmitter buffer.
- Post-tap 1: Specifies the amount of pre-emphasis on the first post tap of the transmitter buffer.
- Equalizer: Specifies the AC gain setting for the receiver equalizer in four stage mode.
Data Type
- PRBS 7: Selects pseudo-random 7-bit sequences.
- PRBS 15: Selects pseudo-random 15-bit sequences.
- PRBS 23: Selects pseudo-random 23-bit sequences.
- PRBS 31: 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.
Error Control
- 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.
- Bit Error Rate: Displays the error rate of data transaction.
- Insert: Inserts a one-word error into the transmit data stream each time you click the button. Insert is enabled only during transaction performance analysis.
- Clear: Resets the Detected errors and Inserted errors counters to zeroes.
Run Control
TX and RX performance bars: Show the percentage of maximum theoretical data rate that the requested transactions are able to achieve.
Start: This toggle button control initiates and stops the tests.
Tx (Mbps) and Rx (Mbps): Show the number of bytes of data analyzed per second.