公开(公告)号：US10467175B1

公开(公告)日：2019-11-05

申请号：US16204969

申请日：2018-11-29

Applicant: QUALCOMM Incorporated

Inventor： Kishalay Haldar ,  Chandan Pramod Attarde ,  Yogesh Garhewal

IPC: G06F3/00 ,  G06F13/42 ,  G06F13/28

Abstract: A method of improving throughput of a secure digital (SD) bus is described. The method includes accessing, during a data transfer over data lines of the SD bus, read metadata over a command (CMD) line of the SD bus between an SD host and an SD client with a first SD direct command. The method also includes reading a read packet over the data lines of the SD bus from the SD client with a second SD direct command. The method further includes storing the read packet in a host buffer allocated according to the read metadata.

公开(公告)号：US11023408B2

公开(公告)日：2021-06-01

申请号：US16405637

申请日：2019-05-07

Applicant: QUALCOMM Incorporated

Inventor： Radu Pitigoi-Aron ,  Chandan Pramod Attarde ,  Richard Dominic Wietfeldt ,  Lalan Jee Mishra

IPC: G06F13/42

Abstract: Systems, methods, and apparatus for communication over a serial bus in accordance with an I3C protocol are described that enable a slave device to request that a bus master device terminate a write transaction with the slave device. The serial bus may be operated according to an I3C single data rate protocol. In various aspects of the disclosure, a method performed at a master device coupled to a serial bus includes initiating a write transaction between the master device and a slave device, where the write transaction includes a plurality of data frames, and at least one data frame is configured with a transition bit in place of a parity bit. The method may include terminating the write transaction when the slave device drives a data line of the serial bus while receiving the transition bit.