SMSC EMC2102 User Manual download pdf (Page 1)

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SMSC EMC2102 USER MANUAL Revision 0.2 (09-17-07)

Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information

sufficient for construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed

for inaccuracies. SMSC reserves the right to make changes to specifications and product descriptions at any time without notice. Contact your local SMSC sales office

to obtain the latest specifications before placing your product order. The provision of this information does not convey to the purchaser of the described semiconductor

devices any licenses under any patent rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms

and conditions of the most recently dated version of SMSC's standard Terms of Sale Agreement dated before the date of your order (the "Terms of Sale Agreement").

The product may contain design defects or errors known as anomalies which may cause the product's functions to deviate from published specifications. Anomaly

sheets are available upon request. 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 and further

testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale Agreement, may be

obtained by visiting SMSC’s website at http://www.smsc.com. SMSC is a registered trademark of Standard Microsystems Corporation (“SMSC”). Product names and

company names are the trademarks of their respective holders.

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.

Fan Speed Control with the EMC2102 Device

1 2 3 4 5 6 ... 37 38

Summary of Contents

Page 1 - Insert EVB graphic/photo here

Page 2 - Table of Contents

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC210210 Figure 5.3 Selecting the Device and Master Controller TypeF

Page 3

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)11 Notes:1. The EVB-EMC2102 needs to be configured using the U

Page 4 - List of Figures

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC210212 5.1.3 Plotting From ChipManThe ChipMan software has the abi

Page 5 - List of Tables

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)13 The two plots shown in Figure 5.8, "Plot Examples"

Page 6 - 4 The Evaluation System

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC210214 5.2.2 Basic RPM Based Fan ControlThe EMC2102 defaults will

Page 7 - Figure 4.2 EVB-EMC2102 Board

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)15 5.2.4 Register Change SummaryTable 5.1, "Register Chan

Page 8 - 5 Basic Operation Experiments

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC210216 5.3 Experiment 3 - Spin-up Configuration OptionsThis expe

Page 9

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)17 the 60% drive the register 51h value is 153d or 99h, and fo

Page 10 - USER MANUAL SMSC EMC2102

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC210218 Note: When a fan starts, the first TACH count captured by t

Page 11 - Revision 0.2 (09-17-07)

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)19 5.3.6 Register Change SummaryTable 5.2, "Register Chan

Page 12

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC21022 Table of Contents1 Overview . . . . . . . . . . . . . . . .

Page 13 - 5.2.1 Getting Started

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC210220 5.4 Experiment 4 - RPM Drive Mode Rate ControlsThis exper

Page 14

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)21 In the next experiment (Figure 5.17, "Default UPDATE w

Page 15 - 5.2.4 Register Change Summary

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC210222 5.4.3 Register Change SummaryTable 5.3, "Register Chan

Page 16 - 5.3.1 Fan Control Parameters

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)23 5.5 Experiment 5 - Optimizing RPM Control ResponseThis ex

Page 17 - 5.3.3 Forced Kick Function

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC210224 5.5.3 FAN Minimum Drive Register (55h) and Valid TACH Count

Page 18 - Invalid TACH Count

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)25 5.5.4 Register Change SummaryTable 5.4, "Register Chan

Page 19 - 5.3.6 Register Change Summary

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC210226 5.6 Experiment 6 - Limits and AlertsThis experiment is de

Page 20

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)27 5.6.3 Register Change SummaryAll register values are defaul

Page 21

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC210228 5.7 Experiment 7 - Troubleshooting5.7.1 Repetitious Spin-

Page 22

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)29 If the fan is already set to 75% level, we will need to low

Page 23 - 5.5.1 General Setup

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)3 6.2.8 Using the Tested Parameters . . . . . . . . . . . . .

Page 24 - Target of 4800 rpm

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC210230 5.7.1.2 Case 2 - Valid RPM << Target RPM < Spin-up

Page 25 - 5.5.4 Register Change Summary

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)31 5.7.1.3 Case 3 - Valid RPM =< Target RPM << Spin-u

Page 26

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC210232 Using the EVB-EMC2102 to test this situation with rpm75 (~5

Page 27 - 5.6.3 Register Change Summary

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)33 5.7.1.4 Case 4 - 4.Valid RPM < Spin-up Level RPM (rpm60

Page 28

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC210234 5.7.1.5 Case 5 - Correct RPM Relationships with a Slow Resp

Page 29

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)35 6 Appendix 6.1 DC Fan Basics - Poles, Tach Meter Pulses a

Page 30 - Valid Speed = 6000 rpm

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC210236 Note: Although users can set the number of edges (in regist

Page 31

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)37  Verify the device is in Manual Mode (52h[7] = 0)6.2.2 Set

Page 32

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC210238 6.2.7 Determine the Spin-up Levels (rpm60 and rpm75) Drive

Page 33

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC21024 List of FiguresFigure 4.1 EMC2102 Fan Control Evaluation Sys

Page 34

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)5 List of TablesTable 5.1 Register Change Summary for Experime

Page 35 - 6 Appendix

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC21026 1 OverviewSMSC has introduced a series of Environmental Moni

Page 36 - 6.2.1 General Setup

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)7 Figure 4.1 EMC2102 Fan Control Evaluation SystemFigure 4.2 E

Page 37

Fan Speed Control with the EMC2102 DeviceRevision 0.2 (09-17-07)USER MANUAL SMSC EMC21028 5 Basic Operation ExperimentsIn this chapter basic operation

Page 38

Fan Speed Control with the EMC2102 DeviceSMSC EMC2102USER MANUAL Revision 0.2 (09-17-07)9 in Figure 5.4, "ChipMan Operation Window". Click

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