The MAX28200 will be powered from the output of the always on LDO.
It will write a fixed set of registers inside the MAX77714 using a soft I2C controller on pins P0.0 and P0.1.
After writing the registers it will sleep until P0.2 goes low and then it will repeat the process.
Immediately following a power on reset, the MAX28200 will drive P0.3 low to disconnect all other devices from the I2C bus except for the MAX77714.
After isolating the bus, it will perform a bus recovery reset by toggling SCL to ensure the MAX77714 was not stuck driving SDA low.
It will then proceed to write the I2C registers with the data listed in Table 1.
After writing all the registers, it will set P0.3 high to allow the host processor access to the I2C bus.
After reconnecting the I2C bus, it will go to sleep waiting for P0.2 to go low.
Whenever P0.2 becomes low, it will repeat the process starting from driving P0.3 low to isolate the bus.