ADM1075
PIN OP WARN LIMIT REGISTER
Address: 0x6B, Reset: 0x7FFF, Name: PIN_OP_WARN_LIMIT
Table 14. Bit Descriptions for PIN_OP_WARN_LIMIT
Data Sheet
Bits
15
[14:0]
Bit Name
RESERVED
PIN_OP_WARN_LIMIT
Settings
Description
Always reads as 0.
Overpower threshold for the PMBus power measurement, expressed
Reset
0x0
0x7FFF
Access
R
RW
in ADC codes.
STATUS BYTE REGISTER
Address: 0x78, Reset: 0x00, Name: STATUS_BYTE
Table 15. Bit Descriptions for STATUS_BYTE
Bits
7
6
Bit Name
RESERVED
HOTSWAP_OFF
Settings
Description
Always reads as 0.
Live register.
Reset
0x0
0x0
Access
R
R
0
1
The hot swap gate drive output is enabled.
The hot swap gate drive output is disabled, and the GATE pin is
pulled down. This can be due to, for example, an overcurrent fault
that causes the ADM1075 to latch off, an undervoltage condition on
the UVx pin, or the use of the OPERATION command to turn the
output off.
5
4
RESERVED
IOUT_OC_FAULT
Always reads as 0.
Latched register.
0x0
0x0
R
R
0
1
No overcurrent output fault detected.
The hot swap controller detected an overcurrent condition and the
time limit set by the capacitor on the TIMER pin has elapsed, causing
the hot swap gate drive to shut down.
3
VIN_UV_FAULT
Latched register.
0x0
R
0
1
No undervoltage input fault detected on the UVH/UVL pins.
An undervoltage input fault was detected on the UVH/UVL pins.
2
1
RESERVED
CML_FAULT
Always reads as 0.
Latched register.
0x0
0x0
R
R
0
1
No communications error detected on the I 2 C/PMBus interface.
An error was detected on the I 2 C/PMBus interface. Errors detected
are unsupported command, invalid PEC byte, and incorrectly
structured message.
0
NONE_OF_THE_ABOVE
Live register.
0x0
R
0
1
No other active status bit to be reported by any other status
command.
Active status bits are waiting to be read by one or more status
commands.
STATUS WORD REGISTER
Address: 0x79, Reset: 0x0000, Name: STATUS_WORD
Table 16. Bit Descriptions for STATUS_WORD
Bits
15
14
Bit Name
RESERVED
IOUT_STATUS
Settings
Description
Always reads as 0.
Live register.
Reset
0x0
0x0
Access
R
R
0
1
There are no active status bits to be read by STATUS_IOUT.
There are one or more active status bits to be read by STATUS_IOUT.
Rev. C | Page 40 of 52
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