I2C Write (Function Index 28)

This _DSM Interface for Byte Addressable Energy Backed Function Class (Function Interface 1) function writes an Inter-Integrated Circuit (I2C) register. This functionality enables scenarios that require the use of vendor-specific registers. It's also used for debugging.

Input

Arg3

Field	Byte length	Byte offset	Description
Page	1	0	The page in which the I2C register is located.
Offset	1	1	The register’s offset inside the page.
Data	1	2	The data to be written to the register.

Output

Field	Byte length	Byte offset	Register	Description
Status	4	0		This function can return the following Function-Specific Error Codes: 1. Invalid page. 2. This register cannot be written to. For more information, see _DSM Method Output.

Related articles

I2C Read (Function Index 27)