参数资料
| 型号： | ADT7475EBZEVB |
| 厂商： | ON Semiconductor |
| 文件页数： | 46/58页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR ADT7475 |
| 产品变化通告： | MFG CHG Notification ADI to ON Semi |
| 标准包装： | 1 |
| 系列： | dBCool® |
| 类型： | 温度传感器 |
| 适用于相关产品： | ADT7475 |
| 所含物品： | 评估板 |
| 其它名称： | EVAL-ADT7475EB EVAL-ADT7475EB-ND |
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ADT7475
Table 53. REGISTER 0X40 ? CONFIGURATION REGISTER 1 (POWER-ON DEFAULT = 0X04)
Bit No.
<0>
Mnemonic
STRT
(Notes 1, 2)
R/W
R/W
Description
Logic 1 enables monitoring and PWM control outputs based on the limit settings programmed.
Logic 0 disables monitoring and PWM control based on the default powerup limit settings.
Note that the limit values programmed are preserved even if a Logic 0 is written to this bit and the
default settings are enabled. This bit does not become locked once Bit 1 (LOCK) has been set.
<1>
<2>
<3>
<4>
<5>
<6>
<7>
LOCK
RDY
FSPD
Vx1
FSPDIS
TODIS
RES
Write
Once
Read-only
R/W
R/W
R/W
R/W
Logic 1 locks all limit values to their current settings. Once this bit is set, all lockable registers
become read-only and cannot be modified until the ADT7475 is powered down and powered up
again. This prevents rogue programs such as viruses from modifying critical system limit
settings. This bit is lockable.
This bit is set to 1 by the ADT7475 to indicate only that the device is fully powered up and ready
to begin system monitoring.
When set to 1, this bit runs all fans at max speed as programmed in the PWM current duty
cycle registers (0x30 to 0x32). Power-on default = 0. This bit is not locked at any time.
BIOS should set this bit to a 1 when the ADT7475 is configured to measure current from the
controller and to measure the CPU’s core voltage. This bit allows monitoring software to display
CPU watts usage. This bit is lockable.
Logic 1 disables fan spin-up for two TACH pulses. Instead, the PWM outputs go high for the
entire fan spin-up timeout selected.
When this bit is set to 1, the SMBus timeout feature is disabled. This allows the ADT7475 to be
used with SMBus controllers that cannot handle SMBus timeouts. This bit is lockable.
Reserved.
1. Bit 0 (STRT) of Configuration Register 1 (0x40) remains writable after the lock bit is set.
2. When monitoring is disabled, PWM outputs always go to 100% for thermal protection.
Table 54. REGISTER 0X41 ? INTERRUPT STATUS REGISTER 1 (POWER-ON DEFAULT = 0X00)
Bit No.
<1>
<2>
<4>
<5>
<6>
<7>
Mnemonic
V CCP
V CC
R1T
LT
R2T
OOL
R/W
Read-only
Read-only
Read-only
Read-only
Read-only
Read-only
Description
V CCP = 1 indicates that the V CCP high or low limit has been exceeded. This bit is cleared on a
read of the status register only if the error condition has subsided.
V CC = 1 indicates that the V CC high or low limit has been exceeded. This bit is cleared on a
read of the status register only if the error condition has subsided.
R1T = 1 indicates that the Remote 1 low or high temperature has been exceeded. This bit is
cleared on a read of the status register only if the error condition has subsided.
LT = 1 indicates that the local low or high temperature has been exceeded. This bit is cleared
on a read of the status register only if the error condition has subsided.
R2T = 1 indicates that the Remote 2 low or high temperature has been exceeded. This bit is
cleared on a read of the status register only if the error condition has subsided.
OOL = 1 indicates that an out-of-limit event has been latched in Interrupt Status Register 2.
This bit is a logical OR of all status bits in Interrupt Status Register 2. Software can test this bit
in isolation to determine whether any of the voltage, temperature, or fan speed readings
represented by Interrupt Status Register 2 are out-of-limit, which saves the need to read
Interrupt Status Register 2 every interrupt or polling cycle.
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| ADT7476AARQZ-REEL | 功能描述:IC REMOTE THERMAL CTRLR 24-QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:dBCool® 标准包装:1 系列:- 功能:温度监控系统（传感器） 传感器类型:内部和外部 感应温度:-40°C ~ 125°C，外部传感器 精确度:±2.5°C 本地（最大值），±5°C 远程（最大值） 拓扑:ADC，比较器，寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6 |
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