ZHCSE08D May 2015 – January 2020 TMP107
PRODUCTION DATA.
The calibration phase is the first phase of every communication, and consists of the host sending 10-bits, as shown in Figure 19. Pull the line low in the beginning to notify each device that the host is initiating communication. Next, the host transmits calibration sequence 55h at the desired communication baud rate. The connected devices receive this calibration byte and calculate the baud rate to communicate with the host. This calibration byte is sent at the beginning of every operation; therefore, each address or command operation can be performed at a different baud rate.