SMSC EVB-EMC2101 User Manual

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EVB-EMC2101 User Manual

The information contained herein is proprietary to SMSC, and shall be used solely in accordance with the agreement pursuant to which it is provided. 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 unless specifically specified otherwise. 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 published 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 WARRANTIES 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 EMC2101

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Revision 1.5 (12-13-06)

EVB-EMC2101 User Manual

1 Overview

The EMC2101 is an environmental monitoring device with a selectable PWM or DAC fan driver output, one external temperature monitoring channel and one internal temperature monitor. It contains advanced circuitry to remove errors induced by series resistance and CPU thermal diode process differences to provide accurate temperature measurements and accurate fan control.

The FAN output can be configured as a PWM (default) or DAC output. The PWM fan driver uses an eight entry look up table to create a programmable temperature response. The DAC output provides a linear drive for the system fan circuit using this same look up table.

Finally, the EMC2101-R has two configuration modes and two default fan settings based on the value of the pull-up-resistor on the ALERT pin. In the Manual Configuration Mode, the device acts as an SMBus client slave and waits to be configured by the system SMBus master. In the Automatic Configuration mode, the device automatically queries the SMBus for an EEPROM device and uploads configuration information from the EEPROM into its internal registers.

All of the modes and functions of the EMC2101 can be tested and observed with the EVB-EMC2101. The EVB-EMC2101 is a USB-based platform for evaluating both EMC2101 packages (8-MSOP and 8-SOIC).

1.1Related Documents

The CD included with the evaluation board contains the following documents:

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Evaluation Board Checklist

Bill Of Materials

Schematic

Jumper Settings and Connector List

Datasheet

Chip Manager Application

Register Definition File (EMC2101.xml)

Revision 1.5 (12-13-06)

SMSC EMC2101

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EVB-EMC2101 User Manual

2 Getting Started

2.1System Requirements

To use the EVB you will need:

n A PC running Windows 2000 or XP

nDisplay resolution 800x600 (or larger to view several windows simultaneously)

nAn available USB port

2.2Feature Summary

nChip Manager (SMSC application) allows viewing and changing register values

nGraphing of any register

nHeaders for connecting a remote diode or CPU/GPU thermal diode

nResistance Error Correction verification

nAutonomous register loading via included EEPROM (EMC2101-R only)

nUSB communication to evaluation board

nAn external SMBus master may also be used via jumper settings

2.3Installing the EVB

1.Install the Chip Manager (ChipMan) application and device driver on a PC by running Setup.exe from the ChipMan distribution CD. A revision history and install/uninstall notes may be found in the readme.txt file on the disk.

2.Connect the supplied USB cable to an available USB port on the PC. Plug the “mini-B” end of the USB cable into EVB connector P6. The +3.3V and Bridge ACT LEDs should illuminate. After the EVB is connected to the PC the “Find New Hardware” wizard will pop up for USB driver installation. 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 will appear as in Figure 2.1. The USBAct LED should be blinking when the Chip Manager is running. For more help with ChipMan, select Help -> Contents for an html based help document as shown in Figure 2.2.

Note: The SMSC ChipMan application allows viewing and changing register values for a variety of EVBs including the EMC1001, EMC1002, EMC1023, EMC1033 and EMC2101. The ChipMan software only needs to be installed once to support all of these EVBs. The list of supported EVBs may be found in the pulldown menu under Options -> Select Device.

SMSC EMC2101

Revision 1.5 (12-13-06)

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EVB-EMC2101 User Manual

Figure 2.1 Chip Manager Quick Help Startup Screen

Revision 1.5 (12-13-06)

SMSC EMC2101

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