OptionalackAcknowledge the last confirmed frame from the far end.
OptionaladrMark the frame as taking part in adaptive data rate.
OptionalconfirmedAsk the far end to acknowledge this frame.
OptionalfoptsMAC commands to carry in the header, at most 15 bytes.
OptionalfpendingTell the device more downlink data is waiting.
The header flags and frame options a sender sets on a data frame.
Every field is optional and defaults off.
fpendingapplies to a downlink only and is ignored on an uplink.