7.4.1.1.1 SMBus Write Operation Format
Writing data to a slave device consists of three parts, as illustrated in Figure 11:
- The master begins with a start condition, followed by the slave device address with the R/W bit set to 0'b.
- After an ACK from the slave device, the 8-bit register word address is written.
- After an ACK from the slave device, the 8-bit data is written, followed by a stop condition.