JAJSIO3A February 2020 – September 2020 TPS546B24A
|Read Transaction:||Read Byte|
|Format:||Unsigned Binary (1 byte)|
This command provides a way for the host to determine the capabilities of this PMBus device. This command is read-only and has one data byte formatted as below.
|LEGEND: R/W = Read/Write; R = Read only|
1b: Packet Error Checking is supported.
10b: Maximum supported bus speed is 1 MHz.
1b: The device has an SMB_ALERT# pin and supports the SMBus Alert Response Protocol.
0b: Numeric format is LINEAR or DIRECT.
0b: AVSBus is NOT supported.
Reserved and always set to 0.
Attempts to write (19h) CAPABILITY to any value will be considered invalid/unsupported data and cause the TPS546B24A to respond by flagging the appropriate status bits and notifying the host according to the PMBus 1.3.1 Part II specification, section 10.9.3.