Diodes AP33772S I2C - Chapter 5. I2 C Command;Register Summary; I2 C Command Format; I2 C Operation; Register Summary

AP33772S I2C USB PD Sink Controller
EVB User Guide
AP33772S EVB User Guide
Rev. 2.0
13 of 34
www.diodes.com
July 2024
© 2024 Copyright Diodes Incorporated. All Rights Reserved.
Chapter 5. I2C Command/Register Summary
As an I2C slave device, the AP33772S’s physical address is 0x52. All AP33772S I2C-related control operations and commands are summarized
in this chapter.
5.1 I2C Command Format
Device Address Format
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
DevAddr6
DevAddr5
DevAddr4
DevAddr3
DevAddr2
DevAddr1
DevAddr0
R/W
1
0
1
0
0
1
0
1/0
Command Format
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
CmdBit7
CmdBit6
CmdBit5
CmdBit4
CmdBit3
CmdBit2
CmdBit1
CmdBit0
Data Format
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
DataBit7
DataBit6
DataBit5
DataBit4
DataBit3
DataBit2
DataBit1
DataBit0
5.2 I2C Operation
I2C Write Operation
I2C Read Operation
5.3 Register Summary
The memory representation of multibyte data types on the AP33772S is in a little-endian byte order: the least significant byte (the "little end") of
the data is placed at the byte with the lowest address.
Suppose the integer is stored as 4 bytes, then a variable X with a value of 0x12345678 will be stored as the following.