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EMC2104 Fiches technique(PDF) 54 Page - SMSC Corporation

No de pièce EMC2104
Description  Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown
PDF  101 Pages
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Fabricant  SMSC [SMSC Corporation]
Site Internet  http://www.smsc.com
Logo SMSC - SMSC Corporation

EMC2104 Fiches technique(HTML) 54 Page - SMSC Corporation

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Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown
Datasheet
Revision 1.74 (05-08-08)
54
SMSC EMC2104
DATASHEET
6.7
REC Configuration Register
The REC Configuration Register determines whether Resistance Error Correction is used for each
external diode channel. The REC Configuration Register is software locked.
Bit 2 - REC3 - Controls the Resistive Error Correction functionality of External Diode 3 and External
Diode 4 (if APD is enabled, see Section 6.9)
‘0’ - the REC functionality for External Diode 3 is disabled
‘1’ (default) - the REC functionality for External Diode 3 is enabled.
Bit 1 - REC2 - Controls the Resistive Error Correction functionality of External Diode 2.
‘0’ - the REC functionality for External Diode 2 is disabled
‘1’ (default) - the REC functionality for External Diode 2 is enabled.
Bit 0 - REC1 - Controls the Resistive Error Correction functionality of External Diode 1. This bit is
locked if the SHDN_SEL pin is not pulled to VDD (see Table 6.1).
‘0’ - the REC functionality for External Diode 1 is disabled
‘1’ (default) - the REC functionality for External Diode 1 is enabled.
0
0101
0.197
0
0110
0.260
0
0111
0.342
0
1000
0.449
0
1001
0.591
0
1010
0.778
0
1011
1.024
0
1100
1.348
0
1101
1.773
0
1110
2.333
0
1111
Disabled
1
X
X
X
X
Automatically detected
Table 6.10 REC Configuration Register
ADDR
R/W
REGISTER
B7B6
B5B4
B3B2
B1B0
DEFAULT
17h
R/W
REC
Configuration
-
-
-
-
-
REC3
REC2
REC1
07h
Table 6.9 Beta Compensation Look Up Table (continued)
AUTO
BETAX[3:0]
MINIMUM BETA
3210



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