SPRABC1 "SerDes Implementation Guide for Keystone I Devices" p.16 says:
- HyperLink lanes can be swapped to simplify routing. The differential pairing must be maintained.
- P and N connections for a single differential pair can be inverted to simplify routing.
I don't see anything in SPRUGW8C "HyperLink for Keystone Devices User Guide" about lane swapping.
To invert a HyperLink pair, the registers in SPRUGW8C Sec 3.4.3 - 3.4.4 include an INVPAIR bit for each Tx/Rx register, but the description says "This field is set automatically by the HyperLink module" as if the setting is configured elsewhere.
Questions:
1. How is HyperLink lane swapping configured?
2. How is HyperLink pair inversion configured?