| 摘要 |
PURPOSE: A device for single or multi assessing with switching SCL BUS based on I2C bus protocol is provided to switch only SCL buses to each switch among slaves having same device address with a master, thereby embodying individual access or simultaneous access in writing operation. CONSTITUTION: A device for single or multi assessing with switching SCL BUS based on I2C bus protocol comprises a plurality of slaves(40) having same device address. A serial data bus(20) directly connects to a master. In order to separately switch serial clock bus(30) through each separate switch, the plurality of slaves connects to the master. According to switch control data of the master, I2C bus controller(60) connects the serial clock bus among at least one or more slaves and the master by switching of each separate switch separately or simultaneously. |
