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EMC1428 EVB User Manual
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Copyright © 2007 SMSC or its subsidiaries. All rights reserved.
The information contained herein is proprietary to SMSC, shall be used solely in accordance with the agreement pursuant to which it is provided,
and shall not be reproduced or disclosed to others without the prior written consent of SMSC. Although the information is believed to be accurate,
no responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to this document and to specifications and product
descriptions at any time without notice. Neither the provision of this information nor the sale of the described semiconductor devices conveys any
licenses under any patent rights or other intellectual property rights of SMSC or others. The product may contain design defects or errors known as
anomalies, including but not necessarily limited to any which may be identified in this document, which may cause the product to deviate from pub-
lished specifications. SMSC products are not designed, intended, authorized or warranted for use in any life support or other application where
product failure could cause or contribute to personal injury or severe property damage. Any and all such uses without prior written approval of an
officer of SMSC will be fully at the risk of the customer. SMSC is a registered trademark of Standard Microsystems Corporation ("SMSC").
SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY AND ALL IMPLIED WARRAN-
TIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND AGAINST INFRINGEMENT AND THE LIKE, AND ANY
AND ALL WARRANTIES ARISING FROM ANY COURSE OF DEALING OR USAGE OF TRADE. IN NO EVENT SHALL SMSC BE LIABLE FOR
ANY DIRECT, INCIDENTAL, INDIRECT, SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES; OR FOR LOST DATA, PROFITS, SAVINGS
OR REVENUES OF ANY KIND; REGARDLESS OF THE FORM OF ACTION, WHETHER BASED ON CONTRACT; TORT; NEGLIGENCE OF
SMSC OR OTHERS; STRICT LIABILITY; BREACH OF WARRANTY; OR OTHERWISE; WHETHER OR NOT ANY REMEDY OF BUYER IS
HELD TO HAVE FAILED OF ITS ESSENTIAL PURPOSE, AND WHETHER OR NOT SMSC HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
SMSC EMC1428
Revision 1.0 (08-21-07)
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Summary of Contents for SMSC EMC1428
- Page 1 The information contained herein is proprietary to SMSC, shall be used solely in accordance with the agreement pursuant to which it is provided, and shall not be reproduced or disclosed to others without the prior written consent of SMSC. Although the information is believed to be accurate, no responsibility is assumed for inaccuracies.
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Page 2: Related Documents
Seven externally connected temperature diodes and one internal diode are available for temperature sensing. The system shutdown temperature is configurable as is the alert alarm levels. All of the functions of the EMC1428 can be tested and observed with the USB-based EVB-EMC1428. A block diagram of this EVB is shown in Figure 1.1. -
Page 3: Getting Started
Follow the instructions in the readme.txt file to complete the installation process. 3. Start the EVB Software by selecting the Chip Manager application from the SMSC folder from the Programs Windows Start menu. The EVB will initialize and the Chip Manager Quick Help screen... - Page 4 EMC1428 EVB User Manual Figure 2.1 Chip Manager Quick Help Startup Screen Revision 1.0 (08-21-07) SMSC EMC1428...
- Page 5 EMC1428 EVB User Manual Figure 2.2 Chip Manager Help Screen SMSC EMC1428 Revision 1.0 (08-21-07)
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Page 6: Board Layout
The EVB was designed for ease of use and user experimentation with easily accessible jumpers and access to the SMBus data lines. Figure 2.3 below shows the silk-screen for the EVB-EMC1428. Figure 2.3 EVB-EMC1428 Board Outline and Silk-screen Revision 1.0 (08-21-07) -
Page 7: Hardware Description
3.2.1 Direct SMBus Connect Option It is also possible to connect an external SMBus master to the EVB-EMC1428. A few jumper settings are all that is required to drive the EMC1428 on the EVB: Simply remove the jumpers on JP19 and connect the SMBus master to the SCL, SDA and ALERT pins, as well as an external supply for +3.3V. -
Page 8: Led Indicators
Pin 3 to the ‘remote-‘ terminal of the remote diode. Make sure a common ground exists between the remote diode (GPU, etc.) and the EVB-EMC1428. Also ensure that the remote diode is properly biased according to the diode manufacture. -
Page 9: Default Jumper Settings
- / open A unique feature of the EMC1428 devices is the ability to select the Hardware System shutdown temperature based on the resistor attached to the TRIP_SET pin and the tri-state setting of the SHDN_SEL pin. The EVB allows the user to quickly evaluate each of the many temperature values by adjusting R50. - Page 10 Note: dashed line indicates jumper position 3.10 Other Sensor Features Other features such as Ideality Factor Configuration, Conversion Rate, and Digital Filtering can be controlled with EMC1428 registers. See the datasheet register description for details. Revision 1.0 (08-21-07) SMSC EMC1428...
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Page 11: Software Description
EMC1428. Figure 4.1below is a typical Temperature History with the external diode of the EMC1428 starting at room temp and then being heated by simply placing a finger on Q1. Figure 4.1 EMC1428 Temperature History Graph SMSC EMC1428 Revision 1.0 (08-21-07) - Page 12 EMC1428 EVB User Manual Revision 1.0 (08-21-07) SMSC EMC1428...
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