Thanks, JammedStab. That is a good point about disconnecting the A/T to prevent unintended activation with airspeed unreliable.
I didn't think the 744 had the wakeup feature like the 777. I read in another forum that it activates under the conditions below, but I can't confirm it with any manual I have, so I was thinking maybe this feature was added recently:
The low speed protection acts at [Min MAN Speed - 8kts]
It engages the SPD mode of the A/THR in the following conditions:
-A/THR in ARM and fully serviceable (Active or not)
-Above 100ft Gnd for Approach / Above 400ft Gnd after Takeoff
-The AFDS vertical mode FLCH SPD, VNAV SPD, TOGA are not the active modes