[quote user="Ethan Huang"]
Ok, I got it.
this is the case it should be. Because all the end device, is set up as RXOnWhenIdle as false. The group broad casting using the casting address of 0xFFFD, which requires RXOnWhenIdle = true to recieve.
Ethan
[/quote]
if this is true, the frame which use AddrGroup will can not use if the system have the device that not receive when idle.
But in general, I think the end device will disable receive when idle for save power.
