Garmin GTN 650Xi Series Pilot's Manual page 262

Navigation
Roll Steering
When switching the CDI source
from GPS to VLOC during ILS,
VOR, NDB, and non-precision
localizer-based approaches, roll
steering terminates when
approach mode is selected on
the autopilot. It becomes
available once you initiate the
missed approach.
TO/FROM LEGS ON CDI
On these legs, the FROM/TO flag
on the CDI indicates "TO" and the
Distance field on the flight plan
decreases as you navigate the leg.
Most legs are this type
3-120
TO Legs
Pilot's Guide
FROM Legs
On these legs, the FROM/TO flag
on the CDI indicates "FROM" and
the Distance field on the flight plan
increases as you navigate the leg.
From legs are typically found on
procedure turns and on some missed
approach procedures.
190-02327-03 Rev. C