ZHCSJZ1 June 2019 TUSB8043A
PRODUCTION DATA.
The TUSB8043A supports a serial interface for configuration register access. The device may be configured by an attached I2C EEPROM or accessed as a slave by an external SMBus master. The external interface is enabled when both the SCL/SMBCLK and SDA/SMBDAT pins are pulled up to 3.3 V at the de-assertion of reset. The mode, I2C master or SMBus slave, is determined by the state of SMBUSz/SS_SUSPEND pin at reset. With the integrated USB HID to I2C master, the I2C interface can also be used to program an external EEPROM or perform updates of an external MCU's firmware.