Datasheet
TPS40400
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SLUS930B –APRIL 2011– REVISED OCTOBER 2011
STATUS_TEMPERATURE (7Dh)
The STATUS_TEMPERATURE command returns one byte of information relating to the status of the converter
temperature related faults. The only bits of this register supported by TPS40400 are OT Fault and OT Warning.
Command STATUS_TEMPERATURE
Format Unsigned binary
Bit Position 7 6 5 4 3 2 1 0
Access r r r r r r r r
Function OT Fault OT Warning X X X X X X
Default Value 0 0 0 0 0 0 0 0
A "1" in any of these bit positions indicates that:
OT Fault:
The device die temperature has exceeded the preset fault threshold.
OT Warning:
The device die temperature has exceeded the preset warning threshold.
STATUS_CML (7Eh)
The STATUS_CML command returns one byte of information relating to the status of the converter’s
communication related faults. The bits of this register supported by TPS40400 are:
Invalid/Unsuppported Command, Invalid/Unsupported Data, Packet Error Check Failed and Other
Communication Fault.
Command STATUS_CML
Format Unsigned binary
Bit Position 7 6 5 4 3 2 1 0
Access r r r r r r r r
Invalid/Unsuppported Invalid/Unsupported Packet Error Check Other Communication
Function X X X X
Command Data Failed Fault
Default Value 0 0 0 0 0 0 0 0
A "1" in any of these bit positions indicates that:
Invalid/Unsupported Command:
An invalid or unsupported command has been received.
Invalild/Unsupported Data
Invalid or unsupported data has been received
Packet Error Check Failed
A packet has failed the CRC error check.
Other Communication Fault
Some other communication fault or error has occurred
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