L6360 datasheet(44/65 Pages) STMICROELECTRONICS

44 / 65 page

Device configuration

L6360

44/65

Doc ID 022817 Rev 2

Sequential Write mode

Figure 27.

Sequential Write mode flow chart procedure

The microcontroller I2C establishes the communication: START condition.

The microcontroller I2C sends the slave address on the I2C bus to check if the slave is

online (1st frame).

After the address is matched, the microcontroller starts the sequential transmission

(2nd ÷ 8th frame).

The microcontroller sends its parity register (last frame: 9th frame).

Microcontroller I2C finishes the communication: STOP condition.

The L6360 calculates the parity of the registers received, and stores the results in the

parity register.

The L6360 compares its parity register with the parity register sent by the

microcontroller (9th frame).

If the parities match, the protocol flow goes on (EXIT), otherwise the PE bit inside the

L6360 status register is set, and the flow goes to the next state.

The L6360 generates an interrupt to report the parity check error.

10. The microcontroller sends a read request to the device. In this phase the L6360 sends

the status register and the parity register allowing the microcontroller to verify which

L6360 Datenblatt(PDF) 44 Page - STMicroelectronics