EMC2103 Datasheet, PDF (71/85 Pages) SMSC Corporation – RPM-Based Fan Controller with HW Thermal Shutdown

RPM-Based Fan Controller with Hardware Thermal Shutdown
Datasheet
The Product Features Register indicates which pin selected functionality is enabled.
SHDN_SEL[2:0]
2
1
0
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
Table 6.59 SHDN_SEL[2:0] Encoding
DIODE MODE
OTHER FEATURES
External Diode 1 Simple Mode - Beta
compensation disabled, REC disabled -
recommended for AMD CPU diodes
none
External Diode 1 Diode Mode - Beta
compensation disabled, REC enabled
none
External Diode 1 Transistor Mode - Beta
compensation enabled, REC enabled - -
recommended for Intel 45nm and 65mn CPU
diodes
none
Internal Diode Transistor Mode - Beta
compensation enabled, REC enabled
none
External Diode 2 Transistor Mode - Beta
compensation enabled, REC enabled
(EMC2103-2 and EMC2103-4 only)
none
External Diode 1 Diode mode (EMC2103-1 only)
External Diode 1 Transistor Mode - Beta
compensation enabled, REC enabled
none
6.42 Product ID Register
Table 6.60 Product ID Register
ADDR R/W REGISTER B7 B6 B5 B4 B3 B2 B1 B0 DEFAULT
Product ID
Register
0
0
1
0
0
1
0
0
24h
(EMC2103-1)
FDh
R
Product ID
Register
(EMC2103-2 0
0
1
0
0
1
1
0
26h
and
EMC2103-4)
The Product ID Register contains a unique 8-bit word that identifies the product.
6.43 Manufacturer ID Register
Table 6.61 Manufacturer ID Register
ADDR
R/W
REGISTER B7 B6 B5 B4 B3 B2 B1 B0 DEFAULT
FEh
R
Manufacturer
ID
0
1
0
1
1
1
0
1
5Dh
 2013 Microchip Technology Inc.
DS0005250A-page 71