Invention Application
WO2015031115A1 METHOD TO MINIMIZE THE NUMBER OF IRQ LINES FROM PERIPHERALS TO ONE WIRE
审中-公开
将外围IRQ线数量最小化为一根线的方法
- Patent Title: METHOD TO MINIMIZE THE NUMBER OF IRQ LINES FROM PERIPHERALS TO ONE WIRE
- Patent Title (中): 将外围IRQ线数量最小化为一根线的方法
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Application No.: PCT/US2014/051758Application Date: 2014-08-19
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Publication No.: WO2015031115A1Publication Date: 2015-03-05
- Inventor: SENGOKU, Shoichiro , WIETFELDT, Richard Dominic , WILEY, George Alan
- Applicant: QUALCOMM INCORPORATED
- Applicant Address: ATTN: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714 US
- Assignee: QUALCOMM INCORPORATED
- Current Assignee: QUALCOMM INCORPORATED
- Current Assignee Address: ATTN: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714 US
- Agency: LOZA, Julio
- Priority: US61/869,673 20130824; US14/462,363 20140818
- Main IPC: G06F13/26
- IPC: G06F13/26
Abstract:
A master device is provided which is coupled to a shared single line interrupt request (IRQ) bus and a control data bus. The master device group slave devices coupled to the shared single line IRQ bus into one or more groups, where each group is associated with a different IRQ signal. The master device then monitors the IRQ bus to ascertain when an IRQ signal is asserted by at least one slave device. The master device then identifies a group to with which the IRQ signal is associated. The slave devices for the identified group are then scanned or queried by the master device to ascertain which slave device asserted the IRQ signal on the IRQ bus. Each group uses a distinguishable IRQ signal to allow the master device to ascertain which group to query or scan.
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