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參數資料
| 型號： | LM81CIMTX-32 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Serial Interface ACPI-Compatible Microprocessor System |
| 中文描述： | 串行接口ACPI的兼容微處理器系統 |
| 文件頁數： | 20/32頁 |
| 文件大小： | 412K |
| 代理商： | LM81CIMTX-32 |
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Functional Description
(Continued)
Extended Repetitive Interrupt Mode
is shown in Figure 14
and operates in the following way: Once activated, all inter-
rupts remain activated until reset by a read of the Interrupt
Status Register 1. Once activated all T_CRIT_A interrupts
remain activated until reset by a read of the Extended Mode
Register 1. Temperature conversion data less than or equal
to T
will activate interrupt. Interrupt will continue to be ac-
tivated until the temperature data exceeds (T
+ T
).
Exceeding T
activates interrupt. Interrupt will continue to
be activated at the end of a conversion until the temperature
data is less than or equal to (T
T
). T_CRIT_A in-
terrupts are activated when the temperature exceeds
T_CRIT. T_CRIT_A interrupts will no longer be activated if
the temperature data at the end of a conversion is less than
or equal to( T_CRIT T
HYST
).
Extended One-Time Interrupt Mode
is shown in Figure 15
and operates in the following way: Once activated all inter-
rupts remain activated until reset by a read of the Interrupt
Status Register 1. Once activated all T_CRIT_A interrupts
remain activated until reset by a read of the Extended Mode
Register 1. An interrupt will be activated when the data of a
temperature conversion is less than or equal to T
. Inter-
rupt cannot again be activated until the data from a tempera-
ture conversion is greater than (T
+ T
). An interrupt
will be activated when the data of a temperature conversion
is greater than T
. Interrupt cannot again be activated un-
til the data of a temperature conversion is less than or equal
to (T
T
). T_CRIT_A interrupt is activated when
the data from a temperature conversion is greater than
T_CRIT. Activation of an T_CRIT_A interrupt cannot occur
until the data from a temperature conversion is less than or
equal to ( T_CRIT T
HYST
).
Extended Comparator Mode
is shown in Figure 16and op-
erates in the following way: Interrupt is activated when the
data from a temperature conversion is less than or equal to
T
. Interrupt is reset when the data from a temperature
conversion exceeds (T
+ T
). Exceeding T
will
activate interrupt. This interrupt will be reset when data from
a temperature conversion is less than or equal to (T
T
). T_CRIT_A interrupt is activated when the tempera-
ture exceeds T_CRIT. T_CRIT_A remains active until the
data from a temperature conversion is less than or equal to
(T_CRIT T
HYST
) resets it.
DS100072-20
*
Note:
Interrupt resets occur only when interrupt Status Register 1 is read.
FIGURE 14. Extended Repetitive Interrupt Mode
DS100072-21
*
Note:
Interrupt resets occur only when interrupt Status Register 1 is read.
FIGURE 15. Extended One-Time Interrupt
DS100072-19
*
Note:
Interrupt resets occur only when interrupt Status Register 1 is read.
FIGURE 16. Extended Comparator Mode
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