Invention Grant
- Patent Title: Method and system for interrupt signaling in an inter-integrated circuit (I2C) bus system
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Application No.: US14053823Application Date: 2013-10-15
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Publication No.: US09959223B2Publication Date: 2018-05-01
- Inventor: David Alan Du , Anubhav Gupta , Peter James Stonard
- Applicant: NXP B.V.
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Main IPC: G06F13/24
- IPC: G06F13/24

Abstract:
Embodiments of a method and system are disclosed. One embodiment of a method for signaling an interrupt in an I2C system that includes a master I2C device and at least one slave I2C device that are connected by an SDA line and an SCL line is disclosed. The method involves, at the slave I2C device, pulling the SDA line low to signal an interrupt and at the slave I2C device, releasing the SDA line in response to either the SCL line having been pulled low or the expiration of a predetermined time period, whichever occurs first. In an embodiment, the predetermined time period is 1 ms.
Public/Granted literature
- US20140337553A1 METHOD AND SYSTEM FOR INTERRUPT SIGNALING IN AN INTER-INTEGRATED CIRCUIT (I2C) BUS SYSTEM Public/Granted day:2014-11-13
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