SMSC EMC2102 User Manual

Fan Speed Control with the EMC2102 Device

SMSC EMC2102

USER MANUAL

Revision 0.2 (09-17-07)

5.5.4

Register Change Summary

Table 5.4, "Register Change Summary for Experiment 7"

lists all register value changes from the

default cmf load to accomplish the tests.

Table 5.4 Register Change Summary for Experiment 7

REGISTER

NAME

ADDRESS

DEFAULT

VALUE

NEW

VALUE

COMMENT

Fan
Configuration

52Bh

CBh

4Bh

Disable RPM based fan control algorithm

ABh

C8h - CFh

Demonstrate UPDATE effect

Valid Tach
Count

56H

2010d

5000d

Changed from 2010 RPM to 5000 RPM to show
the effect in closed-loop