公开(公告)号：US20240281401A1

公开(公告)日：2024-08-22

申请号：US18171264

申请日：2023-02-17

申请人： QUALCOMM Incorporated

发明人： Lalan Jee MISHRA ,  Richard Dominic WIETFELDT ,  Umesh SRIKANTIAH ,  Francesco GATTA ,  Christopher Kong Yee CHUN

IPC分类号： G06F13/42 ,  G06F13/40

CPC分类号： G06F13/4282 ,  G06F13/4022 ,  G06F2213/0018

摘要： A subordinate device participates in address assignment through iterative communication with a host device. The subordinate device receives a first broadcast command over a multidrop serial bus, decouples a daisy chain input of the subordinate device from a daisy chain output of the subordinate device, receives a second broadcast command over the multidrop serial bus, responds to the second broadcast command when a signal received through the daisy chain input is in an active state, ignores the second broadcast command when the signal received through the daisy chain input is in an inactive state, and ignores subsequent broadcast commands after responding to the second broadcast command. Responding to the second broadcast command includes configuring a unique device identifier of the subordinate device using an address provided in the second broadcast command, and coupling the daisy chain input of the subordinate device to the daisy chain output of the subordinate device.