Datasheet PI4IOE5V9554 (Diodes) - 10

PI4IOE5V9554/9554A e. Bus Transaction
Data is transmitted to the PI4IOE5V9554/PI4IOE5V9554A registers using the write mode as shown in Figure 6 and Figure 7. These devices do not implement an auto-increment function, so once a command byte has been sent, the register which was addressed continues to be accessed by reads until a new command byte is sent. F igure 6: Write to Output Register Figure 7: Write to Configuration Register or Polarity Inversion Register PI4IOE5V9554/ PI4IOE5V9554A
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November 2019 Document Number DS40769 Rev 3 - 2 10 © Diodes Incorporated Document Outline — Supply Voltage fSCL = 400kHz Supply Current — VI = GND fSCL = 0kHz I/O = inputs Standby Current VI = VCC fSCL = 0kHz I/O = inputs Power-on Reset Voltage[1]