Invention Grant
US08909844B2 Inter-integrated circuit (I2C) multiplexer switching as a function of clock frequency
有权
集成电路（I2C）多路开关作为时钟频率的函数
- Patent Title: Inter-integrated circuit (I2C) multiplexer switching as a function of clock frequency
- Patent Title (中): 集成电路（I2C）多路开关作为时钟频率的函数
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Application No.: US13541750Application Date: 2012-07-04
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Publication No.: US08909844B2Publication Date: 2014-12-09
- Inventor: Michael DeCesaris , Luke D. Remis , Gregory D. Sellman , Steven L. Vanderlinden
- Applicant: Michael DeCesaris , Luke D. Remis , Gregory D. Sellman , Steven L. Vanderlinden
- Applicant Address: SG New Tech Park
- Assignee: Lenovo Enterprise Solutions (Singapore) Pte. Ltd.
- Current Assignee: Lenovo Enterprise Solutions (Singapore) Pte. Ltd.
- Current Assignee Address: SG New Tech Park
- Agency: CRGO Law
- Agent Steven M. Greenberg, Esq.
- Main IPC: G06F13/00
- IPC: G06F13/00
Abstract:
In accordance with one embodiment of the invention, an I2C bus multiplexing circuit for use in an I2C bus interface can be provided. The I2C bus multiplexing circuit can facilitate multiplexer switching in an I2C bus interface by detecting a start command from an I2C master device via an I2C bus, buffering data from the I2C master device, detecting a clock frequency of a bus serial clock (SCL) line of the I2C master device, holding the serial data (SDA) line of the I2C master device in a clock stretch state and selecting a port based on the detected clock frequency of the SCL of the I2C master device. The method further can include sending the buffered data to an I2C slave device on the selected port. The method further can include receiving an acknowledgement from the I2C slave device on the selected port.
Public/Granted literature
- US20140013151A1 I2C MULTIPLEXER SWITCHING AS A FUNCTION OF CLOCK FREQUENCY Public/Granted day:2014-01-09
Information query
