Control
Description
Data Type
Specifies the type of data contained in the transactions. The following data
types are available for analysis:
• 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
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 Error—Inserts a one-word error into the transmit data stream each
time you click the button. Insert Error is only enabled during transaction
performance analysis.
• Clear—Resets the Detected errors and Inserted errors counters to zeroes.
Loopback
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.
UG-01170
2015.06.26
The XCVR Tab
4-13
Board Test System
Altera Corporation
