BCM3814x60E15A3yzz
The STATUS_CML data byte will be asserted when an unsupported
PMBus™ command or data or other communication fault occurs.
STATUS_INPUT (7Ch)
VIN_OV_FAULT
STATUS_MFR_SPECIFIC (80h)
VIN_OV_WARNING
Not Supported: VIN_UV_WARNING
VIN_UV_FAULT
Reserved
Reserved
Reserved
Reserved
PAGE Data Byte = (01h)
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
Hardware Protections Shutdown Fault
BCM Reverse Operation
7
6
5
4
3
2
1
0
b
1
1
0
1
0
0
0
0
Unsupported bits are indicated above. A one indicates a fault.
7
6
5
4
3
2
1
0
b
0
0
0
0
0
1
1
1
STATUS_TEMPERATURE (7Dh)
The reverse operation bit, if asserted, indicates that the BCM is
processing current in reverse. Reverse current reported value is
not supported.
OT_FAULT
OT_WARNING
Not Supported: UT_WARNING
The BCM has hardware protections and supervisory limits. The
hardware protections provide an additional layer of protection
and have the fastest response time. The Hardware Protections
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.
UT_FAULT
Reserved
Reserved
Reserved
Reserved
The BCM UART is designed to operate with the controller 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
1
1
0
1
0
0
0
0
Reserved
PAGE Data Byte = (00h)
Reserved
Reserved
Unsupported bits are indicated above. A one indicates a fault.
STATUS_CML (7Eh)
BCM at PAGE (01h) is present
Reserved
Invalid Or Unsupported Command Received
Invalid Or Unsupported Data Received
Not Supported: Packet Error Check Failed
BCM UART CML
Hardware Protections Shutdown Fault
BCM Reverse Operation
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
Other Communication Faults
Not Supported: Other Memory Or Logic
Fault
When the PAGE COMMAND (00h) data byte is equal to (00h),
the BCM Reverse operation, Analog Controller Shutdown Fault,
and BCM UART CML bit will return the result of the active BCM.
The BCM UART CML will also be asserted if the active BCM
stops responding. The BCM must communicate at least once
to the internal controller in order to trigger this FAULT.
The BCM UART CML can be cleared using the PAGE (00h)
CLEAR_FAULTS (03h) Command.
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 32 of 41
Rev 2.0
02/2018
VICOR [ VICOR CORPORATION ]
