ADP1055ACPZ-R7 datasheet(63/140 Pages) AD

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Data Sheet

ADP1055

Rev. A | Page 63 of 140

RESTORE_DEFAULT_ALL

Table 18. Register 0x12—RESTORE_DEFAULT_ALL

Bits

Bit Name

Type

Description

N/A

RESTORE_DEFAULT_ALL

Send

This command downloads the factory default settings from the EEPROM into operating

memory. It also resets the EEPROM password and the key code to their default values.

STORE_USER_ALL

Table 19. Register 0x15—STORE_USER_ALL

Bits

Bit Name

Type

Description

N/A

STORE_USER_ALL

Send

This command copies the entire contents of operating memory into the EEPROM (Page 1 of

the main block) as the user settings.

RESTORE_USER_ALL

Table 20. Register 0x16—RESTORE_USER_ALL

Bits

Bit Name

Type

Description

N/A

RESTORE_USER_ALL

Send

This command downloads the stored user settings from EEPROM into operating memory.

CAPABILITY

This command allows host systems to determine the capabilities of the PMBus device (default value is 0xB0).

Table 21. Register 0x19—CAPABILITY

Bits

Bit Name

R/W

Description

Packet error checking

Checks packet error capability of the device.

1 = supported.

[6:5]

Maximum bus speed

Checks the PMBus speed capability of the device.

01 = maximum bus speed is 400 kHz.

SMBALRT

Checks support for the SMBALRT pin and the SMBus Alert Response Address Protocol.

1 = supported.

[3:0]

Reserved

Reserved.

SMBALERT_MASK

Table 22. Register 0x1B—SMBALERT_MASK

Bits

Bit Name

R/W

Description

[15:8]

STATUS_x command code

Command code of the STATUS_x mask register to update.

[7:0]

Mask byte

Update mask register with this value.

VOUT_MODE

The VOUT_MODE command sets the data format for output voltage related data. The data byte for the VOUT_MODE command consists

of a 3-bit mode and 5-bit exponent parameter. The 3-bit mode determines whether the device uses linear format or direct format for the

output voltage related commands. The 5-bit parameter sets the exponent value for linear format. VOUT_MODE[7:5] must be equal to 000.

Table 23. Register 0x20—VOUT_MODE

Bits

Bit Name

R/W

Description

[7:5]

Mode

Returns the output voltage data format. The value is fixed at 000, which means that only

linear data format is supported.

[4:0]

Exponent-N

R/W

Twos complement N exponent used in the output voltage related commands in linear data

format (V = Y × 2N).

VOUT_COMMAND

The VOUT_COMMAND command sets the output voltage. Exponent N is set using VOUT_MODE[4:0]. Bits[7:5] must be equal to 000.

Table 24. Register 0x21—VOUT_COMMAND (Requires Use of the GO Bit in Register 0xFE00)

Bits

Bit Name

R/W

Description

[15:0]

Mantissa-Y

R/W

16-bit unsigned integer Y value for linear data format (V = Y × 2N). N is defined using VOUT_MODE[4:0].

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