ZL6105ALAF datasheet(32/35 Pages) INTERSIL

32 / 35 page

ZL6105

FN6906.5

December 19, 2013

In the event that the device experiences a fault and power is lost, the

user can extract the last SNAPSHOT parameters stored during the

fault by writing a 1 to SNAPSHOT_CONTROL (transfers data from

Flash memory to RAM) and then issuing a SNAPSHOT command

(reads data from RAM via SMBus).

Non-Volatile Memory and Device Security

Features

The ZL6105 has internal non-volatile memory where user

configurations are stored. Integrated security measures ensure

that the user can only restore the device to a level that has been

made available to them. Refer to “Start-up Procedure” on

page 13 for details on how the device loads stored values from

internal memory during start-up.

During the initialization process, the ZL6105 checks for stored

values contained in its internal non-volatile memory. The ZL6105

offers two internal memory storage units that are accessible by

the user as follows:

1. Default Store: A power supply module manufacturer may

want to protect the module from damage by preventing the

user from being able to modify certain values that are related

to the physical construction of the module. In this case, the

module manufacturer would use the Default Store and would

allow the user to restore the device to its default setting but

would restrict the user from restoring the device to the factory

settings.

2. User Store: The manufacturer of a piece of equipment may

want to provide the ability to modify certain power supply

settings while still protecting the equipment from modifying

values that can lead to a system level fault. The equipment

manufacturer would use the User Store to achieve this goal.

Please refer to Application Note AN2033 for details on how to set

specific security measures via the I2C/SMBus interface.

ZL6105ALAF bảng dữ liệu(PDF) 32 Page - Intersil Corporation