Fan Control Device with Hardware Monitoring and Acoustic Noise Reduction Features
Datasheet
INT_STS1 Reg
2.5V_Error
2.5V_Error_En (IER1[2])
Vccp_Error
Vccp_Error_En (IER1[3])
VCC_Error
VCC_Error_En (IER1[7])
5V_Error
5V_Error_En (IER1[5])
Diode 1 Limit
Diode 1_En (IER3[2])
Ambient Limit
Ambient_En (IER3[1])
Diode 2 Limit
Diode 2_En (IER3[3])
2.5V_Error (INT1[0])
Vccp_Error (INT1[1])
+
VCC_Error (INT1[2])
5V_Error (INT1[3])
Diode 1 Limit (INT1[4])
Ambient Limit (INT1[5])
+
Diode 2 Limit (INT1[6])
+
INT#
INT2 (INT1[7])
INT_STS2 Reg
12V_Error
12V_Error_En (IER1[6])
TACH1 Out-of-Limit
TACH1_En (IER2[1])
TACH2 Out-of-Limit
TACH2 _En (IER2[2])
12V_Error (INT2[0])
TACH1 (INT2[2])
TACH2 (INT2[3])
+
TACH3 Out-of-Limit
TACH3 _En (IER2[3])
TACH4 Out-of-Limit
TACH4 _En (IER2[4])
Diode 1 Fault
Diode 1_En (IER3[2])
Diode 2 Fault
Diode 2_En (IER3[3])
TACH3 (INT2[4])
TACH4 (INT2[5])
Diode 1 Fault (INT2[6])
Diode 2 Fault (INT2[7])
Figure 5.1 Interrupt Control
Note: The diode fault bits are not mapped directly to the INT# pin. A diode fault condition forces the
diode reading register to a value of 80h, which will generate a Diode Error condition. See
section Diode Fault on page 22
5.4.1
Diode Fault
The EMC6D102 Chip automatically sets the associated diode fault bit to 1 when any of the following
conditions occur on the Remote Diode pins:
The positive and negative terminal are an open circuit.
Positive terminal is connected to VCC
Positive terminal is connected to ground
Negative terminal is connected to VCC
Revision 0.4 (06-15-06)
SMSC EMC6D102
DATA2S2HEET
SMSC [ SMSC CORPORATION ]
