EVAL-ADM1075EBZ View Datasheet(PDF) - Analog Devices

Part Name

Description

MFG CO.

EVAL-ADM1075EBZ

−48 V Hot Swap Controller and Digital Power Monitor with PMBus Interface

Analog Devices 

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ADM1075

Data Sheet

PIN OP WARN LIMIT REGISTER

Address: 0x6B, Reset: 0x7FFF, Name: PIN_OP_WARN_LIMIT

Table 14. Bit Descriptions for PIN_OP_WARN_LIMIT

Bits Bit Name

Settings Description

15

RESERVED

Always reads as 0.

[14:0] PIN_OP_WARN_LIMIT

Overpower threshold for the PMBus power measurement, expressed

in ADC codes.

Reset

0x0

0x7FFF

Access

R

RW

STATUS BYTE REGISTER

Address: 0x78, Reset: 0x00, Name: STATUS_BYTE

Table 15. Bit Descriptions for STATUS_BYTE

Bits Bit Name

Settings Description

7

RESERVED

Always reads as 0.

6

HOTSWAP_OFF

Live register.

0 The hot swap gate drive output is enabled.

1 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

RESERVED

Always reads as 0.

4

IOUT_OC_FAULT

Latched register.

0 No overcurrent output fault detected.

1 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.

0 No undervoltage input fault detected on the UVH/UVL pins.

1 An undervoltage input fault was detected on the UVH/UVL pins.

2

RESERVED

Always reads as 0.

1

CML_FAULT

Latched register.

0 No communications error detected on the I2C/PMBus interface.

1 An error was detected on the I2C/PMBus interface. Errors detected

are unsupported command, invalid PEC byte, and incorrectly

structured message.

0

NONE_OF_THE_ABOVE

Live register.

0 No other active status bit to be reported by any other status

command.

1 Active status bits are waiting to be read by one or more status

commands.

Reset

0x0

0x0

0x0

0x0

0x0

0x0

0x0

0x0

Access

R

R

R

R

R

R

R

R

STATUS WORD REGISTER

Address: 0x79, Reset: 0x0000, Name: STATUS_WORD

Table 16. Bit Descriptions for STATUS_WORD

Bits Bit Name

Settings Description

15

RESERVED

Always reads as 0.

14

IOUT_STATUS

Live register.

0 There are no active status bits to be read by STATUS_IOUT.

1 There are one or more active status bits to be read by STATUS_IOUT.

Reset

0x0

0x0

Access

R

R

Rev. D | Page 40 of 52

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