NCT7491
http://onsemi.com
60
Table 83. REGISTER 0x73 Configuration Register 2 (PowerOn Default = 0x00) (Note 34)
Bit
Name
R/W (Note 34)
Description
0
Reserved
R
1
Reserved
R
2
ABS/REL
R/W
0 = PECI uses relative values for fan control
1 = PECI uses absolute value for fan control
3
VAVG
R/W
VAVG = 1 indicates that averaging on the voltage measurements is turned off. This
allows measurements on each channel to be made much faster.
4
TAVG
R/W
TAVG = 1 indicates that averaging on the temperature measurements is turned off.
This allows measurements on each channel to be made much faster.
<6:5>
FQ
R/W
Sets the fault queue length:
<00> = 1 event
<01> = 2 events
<10> = 3 events
<11> = 4 events
7
Shutdown
R/W
34.This register becomes readonly when the Configuration Register 1 lock bit is set to 1. Any further attempts to write to this register have no effect.
Table 84. REGISTER 0x74 Interrupt Mask Register 1 (PowerOn Default = 0x00)
Bit
Name
R/W
Description
0
2.5 V
R/W
2.5 V = 1, masks SMBALERT
for outoflimit conditions on the 2.5 V channel.
1
V
CCP
R/W
V
CCP
= 1 masks SMBALERT
for outoflimit conditions on the V
CCP
channel.
2
V
CC
R/W
V
CC
= 1 masks SMBALERT
for outoflimit conditions on the V
CC
channel.
3
5 V
R/W
5 V = 1 masks SMBALERT
for outoflimit conditions on the 5 V channel.
4
RIT
R/W
RIT = 1 masks SMBALERT
for outoflimit conditions on the Remote 1 Temperature channel.
5
LT
R/W
LT = 1 masks SMBALERT
for outoflimit conditions on the Local Temperature channel.
6
R2T
R/W
R2T = 1 masks SMBALERT
for outoflimit conditions on the Remote 2 Temperature channel.
7
R
Reserved
Table 85. REGISTER 0x75 Interrupt Mask Register 2 (PowerOn Default = 0x00)
Bit
Name
R/W
Description
0
12 V
R/W
12 V = 1, masks SMBALERT
for outoflimit conditions on the 12 V channel.
1
R
Reserved
2
FAN1
R/W
FAN1 = 1 masks SMBALERT
for a Fan 1 fault.
3
FAN2
R/W
FAN2 = 1 masks SMBALERT
for a Fan 2 fault.
4
FAN3
R/W
FAN3 = 1 masks SMBALERT
for a Fan 3 fault.
5
FAN4
R/W
FAN4 = 1 masks SMBALERT
for a Fan 4 fault.
6
D1
R/W
D1 = 1 masks SMBALERT
for a diode open or short on a Remote 1 channel.
7
D2
R/W
D2 = 1 masks SMBALERT
for a diode open or short on a Remote 2 channel.
Table 86. REGISTER 0x76 Extended Resolution Register 1 (Note 35) (PowerOn Default = 0x00)
Bit
Name
R/W
Description
<1:0>
2.5 V
R
2.5 V LSBs. Holds the 2 LSBs of the 10bit 2.5 V measurement.
<3:2>
V
CCP
R
V
CCP
LSBs. Holds the 2 LSBs of the 10bit V
CCP
measurement.
<5:4>
V
CC
R
V
CC
LSBs. Holds the 2 LSBs of the 10bit V
CC
measurement.
<7:6>
5 V
R
5 V LSBs. Holds the 2 LSBs of the 10bit 5 V measurement.
35.If this register is read, this register and the registers holding the MSB of each reading are frozen until read.
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
NCT75MNR2G
IC SENSOR TEMP DGTL 8DFN
NCV8881PWR2G
IC REG TRPL BUCK/LINEAR 16SOIC
NE1617ADS,112
IC TEMP MONITOR 16SSOP
NE1619DS,118
IC TEMP MONITOR 16SSOP
NIS5112D1R2G
IC ELECTRONIC FUSE HOTSWAP 8SOIC
NIS5132MN2TXG
IC ELECTRONIC FUSE 12V 10DFN
NIS5132MN3TXG
IC ELECTRONIC FUSE 12V 10-DFN
NSI45015WT1G
IC LED DRIVER LINEAR SOD-123
相关代理商/技术参数
NCT75DMR2G
功能描述:板上安装温度传感器 2-Channel Digital Thermometer w/ Alarm
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
NCT75DR2G
功能描述:板上安装温度传感器 2-Channel Digital Thermometer w/ Alarm
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
NCT75MNR2G
功能描述:板上安装温度传感器 HAS2MONOJLCC84SPACE
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
NCT7717U TR
制造商:Nuvoton Technology Corp 功能描述:SMBUS INTERFACE TEMP. SENSOR W 制造商:Nuvoton Technology Corp 功能描述:IC SMBUS TEMP SENSOR 8MSOP
NCT7718W TR
制造商:Nuvoton Technology Corp 功能描述:IC SMBUS TEMP SENSOR 8MSOP
NCT7802Y
制造商:Nuvoton Technology Corp 功能描述:
NCT7904D
制造商:Nuvoton Technology Corp 功能描述:IC H/W MONITOR
NCT80DBR2G
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
