Summit Microelectronics - Applications Note 29

Tech Support: Applications Note 29
SMH4804 -48V Programmable Hot Swap Sequencing Power Controller Windows GUI Users Guide and Configuration Register Descriptions

Application Note 29

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SMH4804 - Windows GUI Users Guide and Configuration Register Descriptions

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Introduction
The information contained in Application Note 29 details the Configuration Register settings for the SMH4804 programmable Hot Swap power controller. The SMH4804 Windows Graphical User Interface (GUI) is also shown with the associated register and function highlighted. For additional explanation on device functionality related to the configuration registers, also refer to the SMH4804 Data Sheet.

Register Formats and Functions

A total of nine Configuration Registers define the setup of the SMH4804. Some configuration registers are used to enable or disable a function, or to select between functions. Other registers determine various timeout intervals or voltage values. A final register allows the device to be powered on and off over the I2C bus and allows the device to be latched off under fault conditions. All Write and Read operations use either the 1010b or 1011b slave address (configurable) of the I2C protocol.

Figure 1 - SMH4804 Windows GUI Features

SMH4804 Windows Graphical User Interface

The Windows GUI (Figure 1) is used with the SMX3200 programming 'Dongle'. It is an easy to use Graphical Interface that is compatible with Windows 95, 98, NT, 2000 and XP operating systems. The GUI consists of pull-down menus, check boxes, up/down buttons, etc.. There are "mouse-overs" that define the buttons along the toolbar and an expert mode for directly entering data into the configuration registers. The GUI generates a checksum that can compare the programmed device configuration register values versus the hex file contents.

NOTICE

SUMMIT Microelectronics, Inc. reserves the right to make changes to the products contained in this publication in order to improve design, performance or reliability. SUMMIT Microelectronics, Inc. assumes no responsibility for the use of any circuits described herein, conveys no license under any patent or other right, and makes no representation that the circuits are free of patent infringement. Charts and schedules contained herein reflect representative operating parameters, and may vary depending upon a user's specific application. While the information in this publication has been carefully checked, SUMMIT Microelectronics, Inc. shall not be liable for any damages arising as a result of any error or omission.

SUMMIT Microelectronics, Inc. does not recommend the use of any of its products in life support or aviation applications where the failure or malfunction of the product can reasonably be expected to cause any failure of either system or to significantly affect their safety or effectiveness. Products are not authorized for use in such applications unless SUMMIT Microelectronics, Inc. receives written assurances, to its satisfaction, that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; and (c) potential liability of SUMMIT Microelectronics, Inc. is adequately protected under the circumstances.

Revision 1.0 - This document supersedes all previous versions and covers Windows GUI revision 2.3.0 and later. Please check the Summit Microelectronics, Inc. web site at www.summitmicro.com for updates.

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