IPSERIALLITE Altera, IPSERIALLITE Datasheet - Page 58

• Manufacturer Part Number: IPSERIALLITE
• Manufacturer: Altera

Specifications of IPSERIALLITE

• Lead Free Status / RoHS Status: Not Compliant

SerialLite Link Configuration
3–26
SerialLite MegaCore Function User Guide
To configure the link to detect and automatically correct lane polarity
errors, select the Test and reverse option for Lane Polarity in the Link
Start-Up portion of the wizard.
options.
Lane Order
It is possible that the order of lanes may be incorrect due to layout errors.
It may also be reversed (the most significant lane of one end of the link is
connected to the least significant lane of the other end) due to layout
constraints (shown in
detects a lane order mismatch.
If selected as an option, the SerialLite logic can compensate for reversed
lane order on the receive side. This reversal occurs during link
initialization, and remains in place for as long as the link is active.
Figure 3–20. Correct Lane Order
Figure 3–21. Reversed Lane Order
Test only
Test and reverse
Table 3–12. Lane Polarity Options
Option
MegaCore Function Version 1.1.0
Lane 0
Lane 1
Lane 2
Lane 3
Lane 0
Lane 1
Lane 2
Lane 3
Reversed polarity triggers a catastrophic error. This is the
default setting.
Reversed polarity is corrected at the receiver.
Figures 3–20
Table 3–12
and 3–21). The SerialLite logic always
Description
shows the lane polarity
Lane 3
Lane 2
Lane 1
Lane 0
Lane 0
Lane 1
Lane 2
Lane 3
Altera Corporation
August 2005