Section 17.2 of Vol 3.
The section implies that this is the power-on reset as well as the COMRESET protocol diagrams. In the case of a drive being "hot-plugged", the host will have already sent COMRESET, but should still advance it's state machines when the device sends COMINIT. However, by a strict reading of this, the device cannot send the initial register FIS until such time as the host has stopped sending COMRESET.
Is this the intention?
