emc2106 Standard Microsystems Corp., emc2106 Datasheet - Page 68

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

ADDR
ADDR
2Eh
30h
31h
32h
33h
34h
35h
38h
39h
3Ah
3Bh
Revision 1.74 (05-08-08)
6.21
6.22
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
The setting operates independently of the PWM polarity A value of FFh corresponds to fully on (default
100% duty cycle) while a value of 00h corresponds to a fully off (default 0% duty cycle).
The PWM 4 Input Register controls the output of the GPIO3 / PWM4 pin when it is configured as a
PWM output. The input code represents the number of counts out of a total of 255 that the output will
be high for.
The setting operates independently of the PWM polarity A value of FFh corresponds to fully on (default
100% duty cycle) while a value of 00h corresponds to a fully off (default 0% duty cycle).
PWM 4 Setting Register
Limit Registers
REGISTER
External Diode
External Diode
External Diode
External Diode
External Diode
External Diode
External Diode
External Diode
Internal Diode
PWM 4
1 High Limit
2 High Limit
3 High Limit
4 High Limit
Setting
1 Low Limit
2 Low Limit
3 Low Limit
4 Low Limit
REGISTER
VIN4 High
High Limit
Limit
128
B7
752.9
Sign
Sign
Sign
Sign
Sign
Sign
Sign
Sign
Sign
B7
Table 6.27 PWM 4 Setting Register
B6
64
Table 6.28 Limit Registers
376.5
B6
64
64
64
64
64
64
64
64
64
DATASHEET
Dual RPM-Based Linear Fan Controller with Hardware Thermal Shutdown
B5
32
188.2
B5
32
32
32
32
32
32
32
32
32
68
B4
16
94.12
B4
16
16
16
16
16
16
16
16
16
B3
47.06
8
B3
8
8
8
8
8
8
8
8
8
23.53
B2
4
B2
4
4
4
4
4
4
4
4
4
11.76
B1
B1
2
2
2
2
2
2
2
2
2
2
5.88
SMSC EMC2106
B0
1
1
1
1
1
1
1
1
1
B0
1
Datasheet
DEFAULT
DEFAULT
(+85°C)
(+85°C)
(+85°C)
(+85°C)
(+85°C)
(0.8V)
(0°C)
(0°C)
(0°C)
(0°C)
FFh
55h
55h
55h
55h
55h
00h
00h
00h
00h
00h