emc2105 Standard Microsystems Corp., emc2105 Datasheet - Page 39

• Manufacturer Part Number: emc2105
• Description: Emc2105 Rpm-based High Side Fan Controller With Hardware Thermal Shutdown
• Manufacturer: Standard Microsystems Corp.

RPM-Based High Side Fan Controller with Hardware Thermal Shutdown
Datasheet
SMSC EMC2105
ADDR
0Dh
1Ch
1Dh
10h
14h
15h
16h
17h
19h
1Ah
1Bh
1Fh
20h
21h
22h
23h
24h
25h
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R-C
R-C
R-C
R
R
External Diode 1
External Diode 2
External Diode 3
External Diode 1
External Diode 2
External Diode 3
External Diode 4
High Limit Status
Tcrit Limit Status
Low Limit Status
Trip Set Voltage
Configuration 2
Configuration 3
Interrupt Status
External Diode
Temperature 2
Internal Diode
Configuration
Configuration
Configuration
Configuration
Configuration
REGISTER
Tcrit Limit
Tcrit Limit
Tcrit Limit
Tcrit Limit
Tcrit Limit
Pushed
NAME
Beta
Beta
Beta
REC
Table 6.1 EMC2105 Register Set (continued)
voltage or the VIN4 analog voltage input
Stores the status bits for all temperature
Stores the status bits for all temperature
Stores the status bits for all temperature
Stores the Critical temperature limit for
Stores the Critical temperature limit for
Stores the Critical temperature limit for
Stores the Critical temperature limit for
Stores the Critical temperature limit for
Correction functionality for all external
Stores the status bits for temperature
Stores the raw measured TRIP_SET
Stores the integer data for Pushed
Configures the beta compensation
Configures the beta compensation
Configures the beta compensation
Configures the Thermal / Critical
Configures the Resistance Error
Controls the conversion rate for
Shutdown masking options and
Controls the VIN1 - 3 channels
settings for External Diode 1
settings for External Diode 2
settings for External Diode 3
Configuration and control
Temperature 2 to drive LUT
monitoring of all channels
Diode Configuration
DATASHEET
the External Diode 1
the External Diode 2
the External Diode 3
the External Diode 4
channel high limits
channel Tcrit limits
the Internal Diode
channel low limits
software lock
FUNCTION
channels
diodes
39
DEFAULT
(100°C)
(100°C)
(100°C)
(100°C)
(100°C)
VALUE
FFh
0Eh
00h
10h
10h
10h
07h
64h
64h
64h
64h
64h
00h
00h
00h
00h
00h
00h
Revision 1.74 (05-08-08)
LOCK
Write
Write
Write
Write
Write
SWL
SWL
SWL
SWL
Lock
Lock
Lock
Lock
Lock
SWL
SWL
SWL
No
No
No
No
No
No
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