emc2104 Standard Microsystems Corp., emc2104 Datasheet - Page 38

• Manufacturer Part Number: emc2104
• Description: Emc2104 Dual Rpm-based Pwm Fan Controller With Hardware Thermal Shutdown
• Manufacturer: Standard Microsystems Corp.

Chapter 6 Register Set
Revision 1.74 (05-08-08)
6.1
ADDR
0Ch
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
R/W
R/W
R
R
R
R
R
R
R
R
R
R
R
The following registers are accessible through the SMBus Interface. All register bits marked as ‘-’ will
always read ‘0’. A write to these bits will have no effect.
Register Map
Reading Low Byte
External Diode 1
External Diode 1
External Diode 2
External Diode 2
External Diode 3
External Diode 3
External Diode 4
External Diode 4
Critical/Thermal
Temp Reading
Temp Reading
Temp Reading
Temp Reading
Temp Reading
Temp Reading
Temp Reading
Temp Reading
Temperature 1
Internal Temp
Reading High
Internal Temp
Temperature
REGISTER
High Byte
High Byte
High Byte
High Byte
Shutdown
Low Byte
Low Byte
Low Byte
Low Byte
Pushed
NAME
Byte
Stores the fractional data of the Internal
derived from the voltage on TRIP_SET
Stores the integer data of the Internal
Stores the calculated Critical/Thermal
Table 6.1 EMC2104 Register Set
Stores the fractional data of External
Stores the fractional data of External
Stores the fractional data of External
Stores the fractional data of External
Stores the integer data of External
Stores the integer data of External
Stores the integer data of External
Stores the integer data of External
Stores the integer data for Pushed
Shutdown temperature high limit
Temperature 1 to drive LUT 1
Diode 1 and VIN1 channel
Diode 2 and VIN2 channel
Diode 3 and VIN3 channel
Temperature Registers
DATASHEET
Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown
FUNCTION
Diode 1
Diode 2
Diode 3
Diode 4
Diode 4
/ VIN4
Diode
Diode
38
DEFAULT
(+127°C)
VALUE
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
7Fh
00h
LOCK
No
No
No
No
No
No
No
No
No
No
No
No
SMSC EMC2104
Datasheet
Page 50
Page 50
Page 50
Page 50
Page 50
Page 50
Page 50
Page 50
Page 50
Page 50
Page 51
Page 52
PAGE