emc2105 Standard Microsystems Corp., emc2105 Datasheet - Page 44
emc2105
Manufacturer Part Number
emc2105
Description
Emc2105 Rpm-based High Side Fan Controller With Hardware Thermal Shutdown
Manufacturer
Standard Microsystems Corp.
Datasheet
1.EMC2105.pdf
(91 pages)
- Current page: 44 of 91
- Download datasheet (2Mb)
Revision 1.74 (05-08-08)
ADDR
71h
72h
73h
74h
75h
76h
77h
78h
79h
E0h
E1h
E2h
E3h
E4h
E5h
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
Enable Register
GPIO Direction
GPIO Interrupt
Configuration
GPIO Output
Configuration
GPIO Output
LUT Temp 2
LUT Temp 3
LUT Temp 4
LUT Temp 1
LUT Temp 2
LUT Temp 3
LUT Temp 4
LUT Drive 8
REGISTER
GPIO Input
Muxed Pin
LUT Temp
Hysteresis
Setting 7
Setting 7
Setting 7
Setting 8
Setting 8
Setting 8
Setting 8
Register
Register
Register
Register
Register
NAME
Table 6.1 EMC2105 Register Set (continued)
External Diode 2 (or VIN2) channel that
temp) that is associated with the Drive 7
Temp 2 temp) that is associated with the
External Diode 1 (or VIN1) channel that
External Diode 2 (or VIN2) channel that
temp) that is associated with the Drive 8
Temp 2 temp) that is associated with the
Controls the GPIO direction for GPIO 1
Stores the hysteresis that is shared for
TRIP_SET voltage or Pushed Temp 1
TRIP_SET voltage or Pushed Temp 1
External Diode 3 channel (or VIN3 or
External Diode 3 channel (or VIN3 or
Stores the highest programmed drive
Controls the pin function for the pins
is associated with the Drive 7 value
is associated with the Drive 8 value
is associated with the Drive 8 value
Controls the output state of GPIO 1
Internal Diode channel (or Pushed
Internal Diode channel (or Pushed
Stores the threshold level for the
Stores the threshold level for the
Stores the threshold level for the
Stores the threshold level for the
Stores the threshold level for the
Stores the threshold level for the
Stores the threshold level for the
Controls the output type GPIO 1
Enabled Interrupts for GPIO 1
Stores the inputs for GPIO 1
all temperature inputs
DATASHEET
muxed with GPIOs
GPIO Registers
setting for the LUT
RPM-Based High Side Fan Controller with Hardware Thermal Shutdown
Drive 7 value
Drive 8 value
FUNCTION
44
value
value
DEFAULT
(127°C)
(127°C)
(127°C)
(127°C)
(127°C)
(127°C)
(127°C)
VALUE
(10°C)
0Ah
7Fh
7Fh
7Fh
92h
7Fh
7Fh
7Fh
7Fh
01h
00h
00h
00h
00h
00h
LOCK
Lock
Lock
Lock
Lock
Lock
Lock
Lock
Lock
Lock
LUT
LUT
LUT
LUT
LUT
LUT
LUT
LUT
LUT
No
No
No
No
No
No
SMSC EMC2105
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Datasheet
Page 70
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PAGE
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