JAJSJN1A May 2023 – September 2023 TMP4718
PRODUCTION DATA
To write on the I2C bus, the controller sends a START condition on the bus with the address of the target, as well as the last bit (the R/W bit) set to 0, which signifies a write. The target acknowledges, letting the controller know it is ready. After this, the controller starts sending the register pointer followed by the register data to the target. The controller terminates the transmission with a STOP condition.
Writes to read-only registers or register locations outside of the register map will be ignored and the TMP4718 will NACK the data the controller tries to send.
Figure 8-12 shows an example of writing a single byte write communication. TMP4718 does not support multiple byte writes.