EMC2101-ACZT SMSC, EMC2101-ACZT Datasheet - Page 43
EMC2101-ACZT
Manufacturer Part Number
EMC2101-ACZT
Description
Industrial Temperature Sensors Sngl Fan Contrllr
Manufacturer
SMSC
Datasheet
1.EMC2101-ACZL.pdf
(57 pages)
Specifications of EMC2101-ACZT
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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SMBus Fan Control with 1°C Accurate Temperature Monitoring
Datasheet
SMSC EMC2101
6.18
ADDR.
4Ch
2
0
0
0
0
1
1
1
1
1
0
0
1
1
SPIN_DRIVE[1:0]
R/W
R/W
(see
text)
Bit 2-0 - SPIN_TIME[2:0] - determines the length of time that the fan drive will remain at the
SPIN_DRIVE[1:0] setting as shown in
The Fan Setting Register drives the fan driver when the Fan Control Look-Up Table is not used (see
Section
(PWM or DAC). When the Fan Control Look-Up Table is being used, any writes to this register will be
ignored. If the Fan Control Look-Up Table is disabled, then the fan drive will be set at the last value
that was used by the Fan Control Look-Up Table.
When the Fan Control Look-Up Table Registers are being used, the register is read-only.
Fan Setting Register
SPIN_TIME[2:0]
6.16). Any data written to the Fan Setting registers is applied immediately to the fan driver
Fan Setting
REGISTER
1
0
0
1
1
0
0
1
1
0
0
1
0
1
B7
-
Table 6.23 Fan Setting Register
0 - Spin-Up Cycle bypassed
50% (half drive)
75% (3/4 drive)
100% (full drive) (default)
0
0
1
0
1
0
1
0
1
Table 6.21 Spin-Up Drive
Table 6.22 Spin-Up Time
B6
-
DATASHEET
Table
0 - Spin-Up Cycle bypassed
0.05 sec.
0.1 sec.
0.2 sec.
0.4 sec.
0.8 sec.
1.6 sec.
3.2 sec. (default)
B5
32
43
6.22.
B4
16
SPIN UP DRIVE
B3
8
SPIN UP TIME
B2
4
B1
2
Revision 2.54 (06-16-09)
B0
1
DEFAULT
00h
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