emc2106 Standard Microsystems Corp., emc2106 Datasheet - Page 44

• Manufacturer Part Number: emc2106
• Description: Emc2106 Dual Rpm-based Linear Fan Controller With Hardware Thermal Shutdown
• Manufacturer: Standard Microsystems Corp.

Revision 1.74 (05-08-08)
ADDR
2Ch
2Dh
24h
25h
26h
27h
28h
29h
2Ah
2Bh
2Eh
2Fh
30h
31h
32h
33h
34h
35h
38h
39h
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/W
R/W
R/W
R-C
R-C
R-C
R-C
PWM4 Frequency
Frequency divide
High Limit Status
External Diode 1
External Diode 2
External Diode 3
External Diode 4
External Diode 1
External Diode 2
Low Limit Status
Temp High Limit
Temp High Limit
Temp High Limit
Temp High Limit
Interrupt Enable
Enable Register
Temp Low Limit
Temp Low Limit
Voltage 4 High
PWM3 Setting
PWM4 Setting
Internal Diode
Fan Interrupt
PWM Config
Diode Fault
REGISTER
PWM Base
Fan Status
Frequency
High Limit
Register
PWM 3
NAME
Divide
Limit
Table 6.1 EMC2106 Register Set (continued)
Stores the status bits for all temperature
Stores the status bits for all temperature
Stores the status bits for all temperature
Controls the masking of interrupts on all
Controls the masking of interrupts on all
Selects the base frequency for all PWM
Stores the setting of the PWM3 output if
Stores the setting of the PWM4 output if
Low Limit for External Diode 1 or VIN1
Low Limit for External Diode 2 or VIN2
High limit for External Diode 1 or VIN1
High limit for External Diode 2 or VIN2
High limit for External Diode 3 or VIN3
Determines the frequency divide value
Determines the frequency divide value
High Limit for the Voltage 4 channel
based Fan Speed Control Algorithm
Stores the status bits for the RPM
Temperature Limit Registers
High Limit for External Diode 4
High Limit for Internal Diode
for PWM driver 3 if enabled
for PWM driver 3 if enabled
Configures all PWM drivers
temperature channels
DATASHEET
fan related channels
channel diode faults
channel high limits
channel low limits
Dual RPM-Based Linear Fan Controller with Hardware Thermal Shutdown
FUNCTION
enabled
enabled
drivers.
44
DEFAULT
(+85°C)
(+85°C)
(+85°C)
VALUE
(85°C)
(85°C)
(0.8V)
(0°C)
(0°C)
FFh
(80)
(80)
FFh
00h
00h
00h
00h
00h
00h
00h
50h
00h
00h
50h
55h
55h
55h
55h
55h
00h
00h
LOCK
SWL
SWL
SWL
SWL
SWL
SWL
SWL
SWL
No
No
No
No
No
No
No
No
No
No
No
No
SMSC EMC2106
Datasheet
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