SLUSEJ1 December 2021 TPSM8D6C24
|Write Transaction:||Write Byte|
|Read Transaction:||Read Byte|
|Format:||Unsigned Binary (1 byte)|
The STATUS_BYTE command returns one byte of information with a summary of the most critical faults, such as overvoltage, overcurrent, overtemperature, and so forth. The supported STATUS_BYTE message content is described in the following table. The STATUS_BYTE is equal the low byte of STATUS_WORD. The conditions in the STATUS_BYTE are summary information only. They are asserted to inform the host as to which other STATUS registers should be checked in the event of a fault. Setting and clearing of these bits must be done in the individual status registers. For example, Clearing VOUT_OVF in STATUS_VOUT also clears VOUT_OV in STATUS_BYTE.
|BUSY||OFF||VOUT_OV||IOUT_OC||VIN_UV||TEMP||CML||NONE OF THE ABOVE|
|LEGEND: R/W = Read/Write; R = Read only|
|7||BUSY||RW||0b||0b: A fault was NOT declared because the device was busy and unable to
1b. A fault was declared because the device was busy and unable to respond.
|6||OFF||R||0b||LIVE (unlatched) status bit|
0b. The unit is enabled and converting power.
1b: The unit is NOT converting power for any reason including simply not being enabled.
|5||VOUT_ OV||R||0b||0b: An output overvoltage fault has NOT occurred.|
1b: An output overvoltage fault has occurred.
|4||IOUT_ OC||R||0b||0b: An output overcurrent fault has NOT occurred.|
1b: An output overcurrent fault has occurred.
|3||VIN_ UV||R||0b||0b: An input undervoltage fault has NOT occurred.|
1b: An input undervoltage fault has occurred.
|2||TEMP||R||0b||0b: A temperature fault/warning has NOT occurred.|
1b: A temperature fault/warning has occurred, the host should check STATUS_TEMPERATURE for more information.
|1||CML||R||0b||0b: A communication, memory, logic fault has NOT occurred.|
1b: A communication, memory, logic fault has occurred, the host should check STATUS_ CML for more information.
|0||NONE OF THE ABOVE||R||0b||0b: A fault other than those listed above has NOT occurred.|
1b: A fault other than those listed above has occurred. The host should check the STATUS_ WORD for more information.
Writing 80h to STATUS_BYTE will clear the BUSY bit, if set.