EMC6D102-CZC-TR View Datasheet(PDF) - SMSC -> Microchip
Part Name
Description
MFG CO.
EMC6D102-CZC-TR
SMSC -> Microchip
'EMC6D102-CZC-TR' PDF : 86 Pages View PDF
Fan Control Device with Hardware Monitoring and Acoustic Noise Reduction Features
Datasheet
Table 7.15 Absolute Limit vs. Register Setting
ABSOLUTE LIMIT
-127°c
.
.
.
-50°c
.
.
.
0°c
.
.
.
50°c
.
.
.
127°c
ABS LIMIT (DEC)
-127
.
.
.
-50
.
.
.
0
.
.
.
50
.
.
.
127
ABS LIMIT (HEX)
81h
.
.
.
CEh
.
.
.
00h
.
.
.
32h
.
.
.
7Fh
7.2.22
Registers 6D-6Eh: Zone Hysteresis Registers
Register
Address
6Dh
6Eh
Read/
Write
R/W
R/W
Register Name
Zone 1, Zone 2 Hysteresis
Zone 3, Hysteresis
Bit 7
(MSb)
H1-3
H3-3
Bit 6
H1-2
H3-2
Bit 5
H1-1
H3-1
Bit 4
H1-0
H3-0
Bit 3
H2-3
RES
Bit 2 Bit 1
H2-2 H2-1
RES RES
Bit 0
(LSb)
H2-0
RES
Default
Value
44h
40h
These registers become read only when the Lock bit is set. Any further attempts to write to these
registers shall have no effect.
If the temperature is above the Zone x Low Temp Limit, then drops below Zone x Low Temp Limit, the
following will occur:
The fan will remain on, at Fan PWM Minimum, until the temperature goes a certain amount below the
associated zones low temperature limit (see Zone x Low Temp Limit registers). That is, when the
temperature is less than the temperature limit minus the hysteresis value, the fan will turn off.
The Hysteresis registers control this amount. See below table for details.
Table 7.16 Hysteresis Settings
SETTING
0h
.
.
5h
.
.
.
Fh
HYSTERESIS
0°C
.
.
.
5°C
.
.
.
15°C
Revision 0.4 (04-05-05)
66
DATASHEET
SMSC EMC6D102
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