Invention Grant
- Patent Title: I3C read from long latency devices
-
Application No.: US16447801Application Date: 2019-06-20
-
Publication No.: US10572439B1Publication Date: 2020-02-25
- Inventor: Sharon Graif , Meital Zangvil , Lior Amarilio
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Loza & Loza LLP
- Main IPC: G06F13/42
- IPC: G06F13/42 ; G06F13/40

Abstract:
Systems, methods, and apparatus are described. An apparatus provides a clock signal, transmits an address on a second line of the serial bus followed by a read/write bit configured to initiate a read transaction, and delays a pulse in the clock signal after transmitting the read/write bit. The pulse may be delayed for a first duration configured to accommodate a latency associated with a first slave device that is a participant in the read transaction. The apparatus may receive an acknowledgement from the first slave device while the pulse is being transmitted and may receive a first data byte from the first slave device after receiving the acknowledgment. The apparatus may stall the clock signal for a second duration after receiving the first data byte from the first slave device, and receive a second data byte from the first slave device after the acknowledgment.
Information query