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MON35W42 bảng dữ liệu(PDF) 23 Page - SMSC Corporation

tên linh kiện MON35W42
Giải thích chi tiết về linh kiện  Hardware Monitoring IC with Thermal Diode Interface
PDF  60 Pages
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nhà sản xuất  SMSC [SMSC Corporation]
Trang chủ  http://www.smsc.com
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MON35W42 bảng dữ liệu(HTML) 23 Page - SMSC Corporation

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Temperature sensor 2 and sensor 3 nSMI interrupt
Temperature sensor 2 and sensor 3 nSMI interrupt have two modes of operation and are programmed
at CR[4Ch] bit 6.
(1) Comparator Interrupt Mode
Temperatures exceeding TO cause an interrupt. This interrupt is reset by reading the Interrupt Status
Register. Once an interrupt event has occurred by exceeding TO, and then reset, if the temperature
remains above the THYST, the interrupt occurs again when the next conversion has completed. If an
interrupt event has occurred by exceeding TO and is not reset, the interrupt will not occur again. The
interrupt continues to occur in this manner until the temperature goes below THYST. (Figure 16-1)
(2) Two-Times Interrupt Mode
Temperatures exceeding TO cause an interrupt and then when the temperature going below THYST it will
also cause an interrupt if the previous interrupt has been reset by reading the interrupt Status Register.
Once an interrupt event has occurred by exceeding TO, and then reset, if the temperature remains
above the THYST , the interrupt will not re-occur. (Figure 16-2)
TOI
THYST
*
*
*
*Interrupt Reset when Interrupt Status Registers are read
TOI
THYST
nSMI
nSMI
*
*
*
*
*
FIGURE 16-1 - COMPARATOR INTERRUPT MODE
FIGURE 16-2 - TWO-TIMES INTERRUPT MODE



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