BCM3814x60E10A5yzz
The STATUS_CML data byte will be asserted when an unsupported
PMBus™ command or data or other communication fault occured.
STATUS_INPUT (7Ch)
VIN_OV_FAULT
STATUS_MFR_SPECIFIC (80h)
VIN_OV_WARNING
Not Supported: VIN_UV_WARNING
Reserved
Reserved
Reserved
Reserved
PAGE Data Byte = (01h - 04h)
VIN_UV_FAULT
Not Supported: Unit Off For Insufficient
Input Voltage
Not Supported: IIN_OC_FAULT
Not Supported: IIN_OC_WARNING
Not Supported: PIN_OP_WARNING
Reserved
BCM UART CML
Analog Controller Shutdown Fault
BCM Reverse Operation
7
6
5
4
3
2
1
0
b
1
1
0
1
0
0
0
0
7
6
5
4
3
2
1
0
Unsupported bits are indicated above. A one indicates a fault.
b
0
0
0
0
0
1
1
1
The reverse operation bit, if asserted, indicates that the BCM is
processing current in reverse. Reverse current reported value is
not supported.
STATUS_TEMPERATURE (7Dh)
OT_FAULT
The BCM has analog protections and internal µC protections. The
analog controller provides an additional layer of protection and
has the fastest response time. The analog controller shutdown
fault, when asserted, indicates that at least one of the powertrain
protection faults is triggered. This fault will also be asserted if
a disabled fault event occurs after asserting any bit using the
DISABLE_FAULTS COMMAND.
OT_WARNING
Not Supported: UT_WARNING
UT_FAULT
Reserved
Reserved
Reserved
Reserved
The BCM UART is designed to operate with the internal µC UART.
If the BCM UART CML is asserted, it may indicate a hardware or
connection issue between both devices.
7
6
5
4
3
2
1
0
b
Reserved
Reserved
Reserved
1
1
0
1
0
0
0
0
Unsupported bits are indicated above. A one indicates a fault.
Reserved
Reserved
Reserved
Reserved
Reserved
STATUS_CML (7Eh)
Invalid Or Unsupported Command Received
Invalid Or Unsupported Data Received
Not Supported: Packet Error Check Failed
Not Supported: Memory Fault Detected
Not Supported: Processor Fault Detected
Reserved
7
6
5
4
3
2
1
0
b
0
0
0
0
0
0
0
0
When PAGE COMMAND (00h) data byte is equal to (00h), the
BCM Reverse operation, Analog Controller Shutdown Fault, and
BCM UART CML bit will return OR-ing result of active BCMs. The
BCM UART CML will also be asserted if any of the active BCMs
stops responding. The BCM must communicate at least once to
the internal µC in order to trigger this FAULT. The BCM UART CML
can be cleared from the culprit BCM once the internal µC is able
to communicate with it once again or can be cleared using PAGE
(00h) CLEAR_FAULTS (03h) Command.
Other Communication Faults
Not Supported: Other Memory Or Logic
Fault
7
6
5
4
3
2
1
0
b
1
1
0
0
0
0
1
0
Unsupported bits are indicated above. A one indicates a fault.
BCM® in a VIA Package
Page 31 of 39
Rev 1.4
09/2016
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