F75386
7.8 ALERT MASK Register 2 Index 17h
Power on default <7:0> = 00h
T3 = Pin 3 external temperature sensor (Remote)
Bit
Name
Attribute
Description
Set to 1, T3 temperature exceeds its THERM limit will not generate an ALERT.
Set to 0, T3 temperature exceeds its THERM limit will generate an ALERT.
These bits are unused and always set to 0
7
T1_THR_MASK
Reserved
RO
6-5
4
RO
Set to 1, T3 temperature exceeds high limit will not generate an ALERT.
Set to 0, T3 temperature exceeds high limit will generate an ALERT.
Set to 1, T3 temperature goes below low limit will not generate an ALERT.
Set to 0, T3 temperature goes below low limit will generate an ALERT.
This bit is unused and always set to 0
T3H_MASK
RO
3
2
1
0
T3L_MASK
Reserved
RO
RO
RO
RO
Set to 1, T3 temperature exceeds its THERM limit will not generate an ALERT.
Set to 0, T3 temperature exceeds its THERM limit will generate an ALERT.
This bit is unused and always set to 0
T3_THR_MASK
Reserved
7.9 PWM Control Register Index 30h
Power on default <7:0> = 20h
Bit
7
Name
Attribute
R/W
Description
Set method of controlling PWM duty and frequency to FINTEK mode.
This bit is unused and always set to 0
FTK_MODE
Reserved
6
RO
When bit7 set to 0, tachometer input filter can be selected here.
2’b00: Filter time = 177.6us
2’b01: Filter time = 355.2us
2’b10: Filter time = 888us
5-4
FLT_SEL
R/W
2’b11: Filter time = 1.776ms
3
2
Reserved
RO
This bit is unused and always set to 0
Set to 1, disable the clock adjustment for different operating temperature.
Set to 0, enable the clock adjustment for different operating temperature.
Set to 1, select PWMOUT output.
DIS_CLKCTRL
R/W
1
0
PT_SEL
ONE_T
R/W
R/W
Set to 0, select THERM# output.
Set to 1, select only one external thermal diode. At this mode, T3(2nd external) ‘s reading
and status will be set to FFh and 00h.
Set to 0, select two external thermal diodes.
-13-
F75386
July, 2007
V0.27P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
