MCPF1412M06 datasheet(31/63 Pages) MICROCHIP

31 / 63 page

MCPF1412M06

PMBus Commands

Data Sheet

DS60001885C - 31

• 1 : Disable all writes except the WRITE_PROTECT command (bit 5 and bit 6 must be 0)

Bit [6]: Control writing to the PMBus device for protection against accidental changes

• 0 : Enable all writes as permitted in bit 5 or bit 7

• 1 : Disable all writes except for the WRITE_PROTECT, and OPERATION commands (bit 5 and bit 7

must be 0)

Bit [5]: Control writing to the PMBus device for protection against accidental changes

• 0 : Enable all writes as permitted in bit 6 or bit 7

• 1 : Disable all writes except the WRITE_PROTECT, OPERATION, ON_OFF_CONFIG, and

VOUT_COMMAND. (bit 6 and bit 7 must be 0)

Bit [4:0]: Reserved

STORE_USER_ALL (0x15)

The STORE_USER_ALL command stores all of the current storable register settings in the EEPROM

memory as the new defaults on power up. It is permissible to use this command while the device is

switching. To use this command:

1. Set all settings to the desired power up configuration.

2. Pull EN low to disable switching.

3. Apply 7.5 ± 0.25V to the VIN pin

4. Execute the command.

5. Execute a RESTORE_USRE_ALL command..

6. Compare the settings in the part values with the expected settings. If they differ, repeat this

procedure. If the settings differ a second time, discard the part.

RESTORE_USER_ALL (0x16)

The RESTORE_USER_ALL command restores all of the storable register settings from EEPROM

memory to those registers which are unprotected. This command should not be used while the

part is converting power.

CAPABILITY (0x19)

COMMAND

CAPABILITY

Bit

Access

Default #

Bit [7]: Packet Error Checking

• 0 : Packet Error Checking not supported

Bit [6:5]: Maximum Bus Speed

• 01 : Maximum supported bus speed is 400 kHz

Bit [4]: SMBALERT#

• 1 : Enable the SMBus Alert Response protocol

Bit [3]: Numeric Format

• 0 : Numeric data is in LINEAR11, ULINEAR16, SLINEAR16

Bit [2]: AVSBus Support

• 0 : AVSBus not supported

MCPF1412M06 Datasheet(PDF) 31 Page - Microchip Technology

MCPF1412M06 Datasheet(HTML) 31 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63

Datasheet Download

Link URL