Other Parts Discussed in Thread: PCA955
When input data differ from input register state, PCA9555 will trigger the interrupt signal to I2C master, right?
In case I2C master connected eight devices of PCA9555, all of I/O port connected to individual DUT.
Could the I2C master understand directly which one of DUTs was unusual causing PCA955 triggered the interrupt? or I2C master needed to check the state sequentially?