EMC2101-ACZT-TR SMSC, EMC2101-ACZT-TR Datasheet - Page 31

• Manufacturer Part Number: EMC2101-ACZT-TR
• Description: Industrial Temperature Sensors Sngl Fan Contrllr
• Manufacturer: SMSC

Specifications of EMC2101-ACZT-TR

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

SMBus Fan Control with 1°C Accurate Temperature Monitoring
Datasheet
SMSC EMC2101
17h
18h
19h
21h
46h
47h
48h
49h
4Ah
4Bh
4Ch
4Dh
4Eh
4Fh
50h
51h
52h
53h
54h
55h
56h
REGISTER
ADDRESS
R/W
R/W
R/W
R/W
R
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W (See
Note
R/W (See
Note
R/W (See
Note
R/W (See
Note
R/W (See
Note
R/W (See
Note
R/W (See
Note
R/W
6.1)
6.1)
6.1)
6.1)
6.1)
6.1)
6.1)
Table 6.1 Register Set in Hexadecimal Order (continued)
External Diode Ideality
Factor
Beta Compensation Factor
TCRIT Temp Limit
TCRIT Hysteresis
TACH Reading Low Byte
TACH Reading High Byte
TACH Limit Low Byte
TACH Limit High Byte
FAN Configuration
Fan Spin-up
Fan Setting
PWM Frequency
PWM Frequency Divide
Lookup Table Hysteresis
Lookup Table Temp Setting 1
Lookup Table Fan Setting 1
Lookup Table Temp Setting 2
Lookup Table Fan Setting 2
Lookup Table Temp Setting 3
Lookup Table Fan Setting 3
Lookup Table Temp Setting 4
REGISTER NAME
DATASHEET
31
Sets ideality factor based
on diode type
Compensates for
transistors with various
beta factors
if external temp above this
value
Amount of hysteresis
applied to TCRIT Temp
(1LSB = 1°C)
Stores the lower 6 bits of
the TACH count. and the
TACH configuration bits
Stores the upper 8 bits of
the TACH count.
Stores the lower 6 bits of
the TACH Limit
Stores the upper 8 bits of
the TACH Limit
defines polarity of PWM or
DAC
Sets Spin Up options
Sets PWM or DAC value
Sets the final PWM
Frequency
Sets the base PWM
frequency
Amount of hysteresis
applied to Lookup Table
Temp (1LSB = 1°C)
Look Up Table
Temperature Setting 1
Associated Fan Setting for
Temp Setting 1
Look Up Table
Temperature Setting 2
Associated Fan Setting for
Temp Setting 2
Look Up Table
Temperature Setting 3
Associated Fan Setting for
Temp Setting 3
Look Up Table
Temperature Setting 4
Fan will be set to full speed
FUNCTION
12h
(1.008)
08h
55h
(85°C)
0Ah
(10°C)
FFh
FFh
FFh
FFh
20h
3Fh
00h
17h
01h
04h
(4°C)
7Fh
3Fh
7Fh
3Fh
7Fh
3Fh
7Fh
DEFAULT
VALUE
Revision 2.54 (06-16-09)
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