Visible to Intel only — Ixiasoft
Visible to Intel only — Ixiasoft
3.3.2.2. PRBS Signal Eye Test Configuration ( Stratix® V)
From | To | ||
---|---|---|---|
Your Design Logic |
Data Pattern Generator bypass port |
||
Data Pattern Generator |
PHY input port |
||
JTAG to Avalon® Master Bridge |
Intel Avalon® Data Pattern Generator |
||
JTAG to Avalon® Master Bridge |
Intel Avalon® Data Pattern Checker |
||
Data Pattern Checker |
PHY output port |
||
JTAG to Avalon® Master Bridge |
Transceiver Reconfiguration Controller |
||
JTAG to Avalon® Master Bridge |
PHY input port |
||
Transceiver Reconfiguration Controller |
PHY input port |
Enabling Serial Bit Comparator Mode ( Stratix V)
To enable this mode for Stratix® V devices, you must enable the following debugging component options when configuring the debugging system:
Debugging Component | Setting for Serial Bit Mode2 |
---|---|
Transceiver Reconfiguration Controller | Turn on Enable Eye Viewer block and Enable Bit Error Rate Block |
Data Pattern Generator3 | Turn on Enable Bypass interface |
Serial bit comparator mode is less accurate than Data pattern checker mode for single bit error checking. Do not use Serial bit comparator mode if you require an exact error rate. Use the Serial bit comparator mode for checking a large window of error. The toolkit does not read the bit error counter in real-time because it reads through the memory-mapped interface. Serial bit comparator mode has the following hardware limitations for Stratix® V devices:
- Toolkit uses serial bit checker only on a single channel per reconfiguration controller at a time.
- When the serial bit checker is running on channel n, you can change only the VOD, pre-emphasis, DC gain, and Eye Viewer settings on that channel. Changing or enabling DFE or CTLE can cause corruption of the serial bit checker results.
- When the serial bit checker is running on a channel, you cannot change settings on any other channel on the same reconfiguration controller.
- When the serial bit checker is running on a channel, you cannot open any other channel in the Transceiver Toolkit.
- When the serial bit checker is running on a channel, you cannot copy PMA settings from any channel on the same reconfiguration controller.