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参数资料
| 型号： | LM85BIMQ/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO24 |
| 封装： | QSOP-24 |
| 文件页数： | 5/26页 |
| 文件大小： | 261K |
| 代理商： | LM85BIMQ/NOPB |
Functional Description (Continued)
Bit
Name
R/W
Default
Description
1
LOCK
R/W
0
Setting this bit to 1 locks specified limit and parameter registers. Once this bit
is set, limit and parameter registers become read only and will remain locked
until the device is powered off. This register bit becomes read only once it is
set.
2
READY
R
0
The LM85 sets this bit automatically after the part is fully powered up, has
completed the power-up-reset process, and after all A/D converters are
properly functioning.
3
OVRID
R/W
If this bit is set to 1, all PWM outputs will go to 100% duty cycle regardless of
whether or not the lock bit is set. For the LM85C only, when a PWM is
programmed in the disabled mode (Fan Configuration registers 5C-5Eh, bits
fan_config[7:5] = ZON[2:0]=100) the PWM stays in the disabled mode for this
case. Override bit works in all other cases (zone1-3, hottest ...). For the
LM85B the OVRID bit has precedence over the disabled mode. Therefore,
when OVRID is set the PWM will go to 100% even if the PWM is in the
disabled mode.
4–7
Reserved
R
0
Reserved
4.8 Register 41h: Interrupt Status Register 1
Register
Address
Read/
Write
Register
Name
Bit 7
(MSB)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(LSB)
Default
Value
41h
R
Interrupt Status 1
ERR
ZN3
ZN2
ZN1
5V
3.3V
V
CCP
2.5V
00h
The Interrupt Status Register 1 bits will be automatically set, by the LM85, whenever a fault condition is detected. A fault condition
is detected whenever a measured value is outside the window set by its limit registers. ZN3 and ZN1 bits will be set when a diode
fault condition, such as a disconect or short, is detected. More than one fault may be indicated in the interrupt register when read.
This register will hold a set bit(s) until the event is read by software. The contents of this register will be cleared (set to 0)
automatically by the LM85 after it is read by software, if the fault condition is no longer exists. Once set, the Interrupt Status
Register 1 bits will remain set until a read event occurs, even if the fault condition no longer exists
This register is read only — a write to this register has no effect.
Bit
Name
R/W
Default
Description
0
2.5V_Error
R
0
The LM85 automatically sets this bit to 1 when the 2.5V input voltage is
less than or equal to the limit set in the 2.5V Low Limit register or greater
than the limit set in the 2.5V High Limit register.
1V
CCP_Error
R
0
The LM85 automatically sets this bit to 1 when the V
CCP input voltage is
less than or equal to the limit set in the V
CCP Low Limit register or greater
than the limit set in the V
CCP High Limit register.
2
3.3V_Error
R
0
The LM85 automatically sets this bit to 1 when the 3.3V input voltage is
less than or equal to the limit set in the 3.3V Low Limit register or greater
than the limit set in the 3.3V High Limit register.
3
5V_Error
R
0
The LM85 automatically sets this bit to 1 when the 5V input voltage is less
than or equal to the limit set in the 5V Low Limit register or greater than
the limit set in the 5V High Limit register.
4
Zone 1 Limit
Exceeded
R
0
The LM85 automatically sets this bit to 1 when the temperature input
measured by the Remote1 and Remote1+ inputs is less than or equal to
the limit set in the Processor (Zone1) Low Temp register or more than the
limit set in the Processor (Zone1) High Temp register. This bit will be set
when a diode fault is detected.
5
Zone 2 Limit
Exceeded
R
0
The LM85 automatically sets this bit to 1 when the temperature input
measured by the internal temperature sensor is less than or equal to the
limit set in the Internal (Zone2) Low Temp register or greater than the limit
set in the Internal (Zone2) High Temp register.
LM85
www.national.com
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相关代理商/技术参数 |
参数描述 |
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| LM86CIM | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| LM86CIM/NOPB | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
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