Figure 2–23. Data Path in Reverse Serial Loopback Mode
BIST PRBS
Verifier
BIST
Incremental
Verifier
Word
Aligner
Deserializer
Channel
Aligner
Rate
Phase
Compensation
FIFO
Matcher
8B/10B
Decoder
Byte
Deserializer
Clock
Recovery
Unit
Phase
Compensation
FIFO
Byte
Serializer
Serializer
8B/10B
Encoder
BIST
Generator
Active Path
Non-Active Path
BIST PRBS
Generator
BIST (Built-In Self Test)
The Stratix GX transceiver has built-in self test modes to aid in debug and
testing. The BIST modes are set in the Stratix GX MegaWizard Plug-In
Manager in the Quartus II software. Only one BIST mode can be set for
any single instance of the transceiver block. The BIST mode applies to all
channels used in a transceiver.
The following is a list of the available BIST modes:
■
■
■
■
■
PRBS generator and verifier
Incremental mode generator and verifier
High-frequency generator
Low-frequency generator
Mixed-frequency generator
Figures 2–24 and 2–25 are diagrams of the BIST PRBS data path and the
BIST incremental data path, respectively.
2–28
Stratix GX Device Handbook, Volume 1
Altera Corporation
June 2006
ALTERA [ ALTERA CORPORATION ]
