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| 型号： | LM80CIMTX-32 |
| 厂商： | National Semiconductor Corporation |
| 英文描述： | Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor |
| 中文描述： | 串行接口ACPI的兼容微处理器系统硬件监视器 |
| 文件页数： | 11/29页 |
| 文件大小： | 412K |
| 代理商： | LM80CIMTX-32 |
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Functional Description (Continued)
8.0 THE LM80 INTERRUPT STRUCTURE
Figure 10 depicts the Interrupt Structure of the LM80. The
LM80 can generate Interrupts as a result of each of its inter-
nal WATCHDOG registers on the analog, temperature, and
fan inputs.
8.1 INTERRUPT INPUTS
External Interrupts can come from the following sources.
While the label suggests a specific type or source of Inter-
rupt, this label is not a restriction of its usage, and it could
come from any desired source:
BTI -
This is an active low Interrupt intended to come
from the O.S. output of LM75 temperature sensors. The
LM75 O.S. output goes active when its temperature ex-
ceeds a programmed threshold. Up to 8 LM75’s can be
connected to a single Serial Bus bus with their O.S. out-
put’s wire or’d to the BTI input of the LM80. If the tem-
perature of any LM75 exceeds its programmed limit, it
drives BTI low. This generates an Interrupt to notify the
host of a possible overtemperature condition. Provides
an internal pull-up of 10 k
.
CI (Chassis Intrusion) -
This is an active high interrupt
from any type of device that detects and captures chassis
intrusion violations. This could be accomplished me-
chanically, optically, or electrically, and circuitry external
to the LM80 is expected to latch the event. The design of
the LM80 allows this input to go high even with no power
applied to the LM80, and no clamping or other interfer-
ence with the line will occur. This line can also be pulled
low for at least 10 ms by the LM80 to reset a typical
Chassis Intrusion circuit. Accomplish this reset by setting
Bit 5 of Configuration Register high. The bit in the Regis-
ter is self-clearing.
DS100040-18
FIGURE 10. Interrupt Structure
www.national.com
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相关代理商/技术参数 |
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|---|---|
| LM80CIMTX-5 | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| LM80CIMTX-5/NOPB | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| LM80CIMTX-52 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor |
| LM80EVAL | 功能描述:EVALUATION BOARD FOR LM80 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:PowerWise® 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理，电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板 |
| LM81 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor |
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