公开(公告)号：US20180329837A1

公开(公告)日：2018-11-15

申请号：US15950955

申请日：2018-04-11

Applicant: QUALCOMM Incorporated

Inventor： Lalan Jee MISHRA ,  Richard Dominic WIETFELDT ,  Mohit Kishore PRASAD

IPC: G06F13/10 ,  G06F13/20 ,  G06F13/42

CPC classification number: G06F13/102 ,  G06F13/105 ,  G06F13/20 ,  G06F13/385 ,  G06F13/4282 ,  G06F2213/0016

Abstract: Systems, methods, and apparatus for communication virtualized general-purpose input/output (GPIO) signals over a serial communication link. A method performed at a transmitting device coupled to a communication link includes maintaining in a first register, a plurality of virtual general-purpose input/output (VGPIO) bits representing state of a one or more output GPIO pins at least one bit representative of state of an input GPIO pin of the first device, receiving first VGPIO state information directed to the first register, writing or refraining from writing a first set of bits of the first VGPIO state information to the first register based on the value of corresponding bits of a second register. The second set of bits may be directed to the one or more bits representative of state of output GPIO pins.