SCPS205B April 2014 – November 2019 TCA9546A
PRODUCTION DATA.
Following a start condition, the bus master must output the address of the slave it is accessing. The address of the TCA9546A is shown in Figure 13. To conserve power, no internal pullup resistors are incorporated on the hardware-selectable address pins, and they must be pulled high or low.
The last bit of the slave address defines the operation to be performed. When set to a logic 1, a read is selected, while a logic 0 selects a write operation.