BCM4414xG0F4440yzz
STATUS_INPUT (7Ch)
STATUS_MFR_SPECIFIC (80h)
Reserved
Reserved
Reserved
Reserved
PAGE Data Byte = (01h)
VIN_OV_FAULT
VIN_OV_WARNING
Not Supported: VIN_UV_WARNING
VIN_UV_FAULT
Not Supported: Unit Off For Insufficient
Input Voltage
Reserved
BCM UART CML
Not Supported: IIN_OC_FAULT
Not Supported: IIN_OC_WARNING
Not Supported: PIN_OP_WARNING
Hardware Protections Shutdown Fault
BCM Reverse Operation
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
b
b
0
0
0
0
0
1
1
1
1
1
0
1
0
0
0
0
Unsupported bits are indicated above. A one indicates a fault.
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)
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.
OT_FAULT
OT_WARNING
Not Supported: UT_WARNING
UT_FAULT
Reserved
Reserved
Reserved
Reserved
The BCM communicates with its internal secondary microcontroller
via UART communication. If the BCM UART CML is asserted, it may
indicate a hardware or connection issue between the BCM and the
secondary microcontroller.
Reserved
PAGE Data Byte = (00h)
7
6
5
4
3
2
1
0
b
Reserved
Reserved
1
1
0
1
0
0
0
0
Unsupported bits are indicated above. A one indicates a fault.
BCM at PAGE (01h) is present
Reserved
STATUS_CML (7Eh)
BCM UART CML
Invalid Or Unsupported Command Received
Invalid Or Unsupported Data Received
Not Supported: Packet Error Check Failed
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
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.
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.
The STATUS_CML data byte will be asserted when an unsupported
PMBus® command or data or other communication fault occurs.
BCM® in a VIA™ Package
Page 34 of 44
Rev 1.7
10/2020
VICOR [ VICOR CORPORATION ]
