參數(shù)資料
型號: LM81CIMTX-3
英文描述: Single-Ended Data Acquisition System
中文描述: 單端數(shù)據(jù)采集系統(tǒng)
文件頁數(shù): 22/33頁
文件大?。?/td> 414K
代理商: LM81CIMTX-3
Functional Description
(Continued)
9.0 THE LM81 INTERRUPT STRUCTURE
Figure 17 depicts the Interrupt Structure of the LM81. The
LM81 can generate Interrupts as a result of each of its
internal WATCHDOG registers on the analog, temperature,
and fan inputs.
External Interrupts can come from the following source.
While the label suggests a specific type or source of
Interrupt, this label is not a restriction of its usage, and it
could come from any desired source:
Chassis Intrusion:
This is an active high interrupt from
any type of device that detects and captures chassis
intrusion
violations.
This
mechanically, optically, or electrically, and circuitry
could
be
accomplished
external to the LM81 is expected to latch the event. The
design of the LM81 allows this input to go high even with
no power applied to the LM81, and no clamping or other
interference with the line will occur. This line can also be
pulled low for at least 20 ms by the LM81 to reset a
typical Chassis Intrusion circuit. Accomplish this reset by
setting Bit 7 of CI Clear Register (45h) high. The bit in the
Register is self-clearing.
All interrupts are indicated in the two Interrupt Status
Registers. The INT output has two mask registers, and
DS100072-22
FIGURE 17. Interrupt Structure
L
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