Slave device connected to master device via I2C bus and communication method thereof

A slave device connected to a master device via an I2C bus, the slave device comprising a processor and a non-transitory memory having instructions stored thereon, which when executed by the processor, cause the processor to:

• detect the condition of a byte end flag when the slave device is in a transmission mode, wherein the byte end flag is set via a register of the slave device;
• and
• clear the byte end flag to stop transmitting data to the master device as the slave device is in the transmission mode, when the byte end flag is detected to be in a first condition;
• wherein the first condition indicates all data requested by the master device has been transmitted by the slave device;
• and
• wherein the first condition and a second condition are determined based on a value of the byte end flag and a duration during which the byte end flag is the value, wherein the duration during which the byte end flag is a first character being larger than a time value indicates the byte end flag is in the first condition, and the duration during which the byte end flag is the first character being less than or equal to the time value indicates the byte end flag is in the second condition.

A slave device connected to a master device via an I2C bus, comprising:

• an arithmetic logic circuit configured to detect the condition of a byte end flag when the slave device is in a transmission mode, wherein the byte end flag is set via a register of the slave device;
• and
• a control circuit coupled to the arithmetic logic circuit and configured to clear the byte end flag to stop transmitting data to the master device as the slave device is in the transmission mode when the byte end flag is detected to be in a first condition by the arithmetic logic circuit;
• wherein the first condition indicates all data requested by the master device has been transmitted by the slave device;
• and
• wherein the first condition and a second condition are determined based on a value of the byte end flag and a duration during which the byte end flag is the value, wherein the duration during which the byte end flag is a first character being larger than a time value indicates the byte end flag is in the first condition, and the duration during which the byte end flag is the first character being less than or equal to the time value indicates the byte end flag is in the second condition.