Product specifications

VT1211 LPC SuperIO and Hardware Monitor
Revision 1.0 January 8, 2002 -47- Register Descriptions – Hardware Monitor I/O
Technologies, Inc.
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Offset 4B – Temperature Configuration 1 (15h)............RW
7-6 Temperature 1….................................................. RO
For thermal input 1:10- bit temperature resolution.
(LSB temp1 [1:0]).
5-4 Same as Bits 1-0 But For Internal Thermal Input
3
Same as above bit 1 & 0, but for thermal input 3
(Reserved for internal thermal diode).......... def = 01b
3 Hot Temperature Interrupt mode select Bit 1 of
Thermal Input of UCH1……….............. default = 0
A one on this bit (Bit 1) and a zero on Bit 0 selects
the comparator mode. This gives an INT when the
temperature exceeds the hot limit. This INT remains
active until the temperature goes below the hot limit
(no hysteresis). When the INT will become inactive.
2 Hot Temperature Interrupt Mode Select Bit 0 of
Thermal Input of UCH1……….............. default = 1
If Bits 0 and Bits 1 of this register are both zero or
one, this selects the default interrupt mode, which
gives the user an interrupt if the temperature goes
above the hot limit. The interrupt will be cleared
once the status register is read, but it will again be
generated when the next conversion has completed. It
will continue to do so until the temperature goes
below the hysteresis limit.
A zero on Bit 1 and a one on Bit 0 selects the one-
time interrupt mode that gives the user an indefinite
interrupt when it goes above the hot limit. The
interrupt will be cleared once the status register is
read. Another interrupt will not be generated until the
temperature first goes below the hysteresis limit. It
will also be cleared if the status register is read.
No more interrupts will be generated until the
temperature goes above hot limit again. The
corresponding bit will be cleared in the status register
every time it is read but may not set again when the
next conversion is done.
1 Hot Temperature Interrupt Mode Select Bit 1 of
Thermal Input of Intel Type Thermal Diodedef = 0
A one on this bit (Bit 1) and a zero on Bit 0 selects
the comparator mode. This gives an INT when the
temperature exceeds the hot limit. This INT remains
active until the temperature goes below the hot limit
(no hysteresis). When the INT will become inactive.
0 Hot Temperature Interrupt Mode Select Bit 0 of
Thermal Input of Intel Type Thermal Diodedef = 1
If Bits 0 and Bits 1 of this register are both zero or
one, this selects the default interrupt mode, which
gives the user an interrupt if the temperature goes
above the hot limit. The interrupt will be cleared
once the status register is read, but it will again be
generated when the next conversion has completed. It
will continue to do so until the temperature goes
below the hysteresis limit.
A zero on Bit 1 and a one on Bit 0 selects the one-
time interrupt mode that gives the user an indefinite
interrupt when it goes above the hot limit. The
interrupt will be cleared once the status register is
read. Another interrupt will not be generated until the
temperature first goes below the hysteresis limit. It
will also be cleared if the status register is read.
No more interrupts will be generated until the
temperature goes above the hot limit again. The
corresponding bit will be cleared in the status register
every time it is read but may not set again when the
next conversion is done.