Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown
Datasheet
Table 6.1 EMC2104 Register Set (continued)
REGISTER
NAME
DEFAULT
VALUE
ADDR
R/W
FUNCTION
LOCK
PAGE
Pushed
Temperature 2
Stores the integer data for Pushed
Temperature 2 to drive LUT 1
0Dh
R/W
00h
00h
00h
FFh
No
Page 52
Pushed
Temperature 3
Stores the integer data for Pushed
Temperature 3 to drive LUT2
0Eh
0Fh
10h
R/W
R/W
R
No
No
No
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Pushed
Temperature 4
Stores the integer data for Pushed
Temperature 4 to drive LUT2
Stores the raw measured TRIP_SET
voltage or the VIN4 analog voltage input
Trip Set Voltage
Diode Configuration
External Diode 1
Beta
Configuration
Configures the beta compensation
settings for External Diode 1
14h
15h
16h
17h
R/W
R/W
R/W
R/W
10h
10h
10h
07h
SWL
SWL
SWL
SWL
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External Diode 2
Beta
Configuration
Configures the beta compensation
settings for External Diode 2
External Diode 3
Beta
Configuration
Configures the beta compensation
settings for External Diode 3
External Diode
REC
Configuration
Configures the Resistance Error
Correction functionality for all external
diodes
External Diode 1
Tcrit Limit
Stores the Critical temperature limit for
the External Diode 1
64h
(100°C)
Write
Lock
19h
1Ah
1Bh
1Ch
1Dh
R/W
R/W
R/W
R/W
R/W
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External Diode 2
Tcrit Limit
Stores the Critical temperature limit for
the External Diode 2
64h
(100°C)
Write
Lock
External Diode 3
Tcrit Limit
Stores the Critical temperature limit for
the External Diode 3
64h
(100°C)
Write
Lock
External Diode 4
Tcrit Limit
Stores the Critical temperature limit for
the External Diode 4
64h
(100°C)
Write
Lock
Internal Diode
Tcrit Limit
Stores the Critical temperature limit for
the Internal Diode
64h
(100°C)
Write
Lock
Configuration and control
Stores the status bits for all temperature
channel Tcrit limits
1Fh
20h
R-C
R/W
Tcrit Limit Status
Configuration
00h
00h
No
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Page 55
Configures the Thermal / Critical
Shutdown masking options and
software lock
SWL
Controls the conversion rate for
monitoring of all channels
21h
22h
23h
R/W
R/W
R
Configuration 2
Configuration 3
Interrupt Status
0Eh
00h
00h
SWL
SWL
No
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Controls the VIN1 - 3 channels
Stores the status bits for temperature
channels
SMSC EMC2104
Revision 1.74 (05-08-08)
DATA3S9HEET
SMSC [ SMSC CORPORATION ]
