參數(shù)資料
型號: LM87
廠商: National Semiconductor Corporation
英文描述: Serial Interface System Hardware Monitor with Remote Diode Temperature Sensing
中文描述: 串行接口系統(tǒng)硬件監(jiān)控與遠程二極管溫度傳感器
文件頁數(shù): 26/32頁
文件大小: 470K
代理商: LM87
Functional Description
(Continued)
13.5 Configuration Register 1—Address 40h
Power on default –
<
7:0
>
= 00001000 binary
Bit
0
Name
Read/Write
Read/Write
Description
Start
A one enables startup of monitoring operations, a zero puts the part in standby mode.
Note:
The outputs of Interrupt pins will not be cleared if the user writes a zero to this
location after an interrupt has occurred, unlike the “INT_Clear” bit.
At start up, limit checking functions and scanning begin. Note, all limits should be set in
the Value RAM before setting this bit HIGH.
A one enables the INT
#
Interrupt output.
A one enables the THERM
#
Interrupt output.
1
2
INT
#
Enable
THERM#
Enable
INT#_Clear
Read/Write
Read/Write
3
Read/Write
A one disables the INT
#
output without affecting the contents of Interrupt Status
Registers. The device will stop monitoring. It will resume upon clearing of this bit.
A one outputs a 20 ms minimum active low reset signal at RESET
#
. This bit is cleared
once the pulse has gone inactive.
4
RESET
#
Read/Write
5
6
Reserved
THERM#_Clear
Read/Write
Read/Write
A one disables the THERM
#
output without affecting the contents of Interrupt Status
Registers.
A one restores power on default values to the Configuration Register, Interrupt Status
Registers, Interrupt Mask Registers, CI Clear Register, VID/Fan Divisor Register, VID4,
Temperature Configuration Register, and the Extended Mode Registers. This bit clears
itself since the power on default is zero.
7
INITIALIZATION
Read/Write
13.6 Interrupt Status Register 1—Address 41h
Power on default –
<
7:0
>
= 0000 0000 binary
Bit
0
1
2
3
4
5
6
Name
+2.5Vin
Vccp1
Vcc
+5Vin
Int. Temp.
Ext. Temp.
FAN1/AIN1
Read/Write
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Description
A one indicates a High or Low limit has been exceeded.
A one indicates a High or Low limit has been exceeded.
A one indicates a High or Low limit has been exceeded.
A one indicates a High or Low limit has been exceeded.
A one indicates a High or Low limit has been exceeded.
A one indicates a High or Low limit has been exceeded.
A one indicates the fan count limit has been exceeded or an AIN1 High or Low limit has
been exceeded.
A one indicates the fan count limit has been exceeded or an AIN2 High or Low limit has
been exceeded.
7
FAN2/AIN2
Read Only
L
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26
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