參數(shù)資料
型號(hào)： LM80CIMT-31
廠商： National Semiconductor Corporation
英文描述： Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor
中文描述： 串行接口ACPI的兼容微處理器系統(tǒng)硬件監(jiān)視器
文件頁(yè)數(shù)： 26/29頁(yè)
文件大?。?/td> 435K
代理商： LM80CIMT-31
Functional Description
(Continued)
12.8 Fan Divisor Register/RST_OUT/OS— Address 05h
Power on –
<
7:4
>
is 0101, and
<
3:0
>
is mapped to VID
<
3:0
>
Bit
0
Name
Read/Write
Read/Write
Description
FAN1 Mode
Select
FAN2 Mode
Select
FAN1 RPM
Control
A one selects the level sensitive input mode while a zero selects Fan count mode
for the FAN1 input pin.
A one selects the level sensitive input mode while a zero selects Fan count mode
for the FAN2 input pin.
FAN1 Speed Control.
1
Read/Write
2-3
Read/Write
<
3:2
>
= 00 - divide by 1;
<
3:2
>
= 01 - divide by 2;
<
3:2
>
= 10 - divide by 4;
<
3:2
>
= 11 - divide by 8.
If level sensitive input is selected:
>
2
<
= 1 selects and active-low input (An interrupt
will be generated if the FAN2 input is Low),
>
2
<
= 0 selects an active-high input (an
interrupt will be generated if the FAN2 input is High).
FAN2 Speed Control.
4-5
FAN2 RPM
Control
Read/Write
<
5:4
>
= 00 - divide by 1;
<
5:4
>
= 01 - divide by 2;
<
5:4
>
= 10 - divide by 4;
<
5:4
>
= 11 - divide by 8.
If level sensitive input is selected:
<
2
>
= 1 selects and active-low input (An interrupt
will be generated if the FAN2 input is Low),
<
2
>
= 0 selects an active-high input (an
interrupt will be generated if the FAN2 input is High).
A one enables OS mode on the RST_OUT/OS output pin, while Bit 7 of this register
is set to zero. If bits 6 and 7 of this register are set to zero the RST_OUT/OS pin is
disabled.
A one sets the RST_OUT/OS pin in the RST mode. In the RST mode, bit 7 of the
Fan Divisor/RST_OUT/OS Register has to be set to one. If bits 6 and 7 of this
register are set to zero the RST_OUT/OS pin is disabled.
6
OS pin enable
Read/Write
7
RST enable
Read/Write
12.9 OS Configuration/Temperature Resolution Register— Address 06h
Power on default Serial Bus address
<
7:0
>
= 0000 0001 binary
Bit
0
Name
Read/Write
Read only
Description
OS status
Status of the OS.This bit mirrors the state of the RST_OUT/OS pin when in the OS
mode.
A zero selects OS to be active-low, while a one selects OS to be active high. OS is
an open-drain output.
A one selects the one time interrupt mode for OS, while a zero selects comparator
mode for OS. (See in Section 7.0)
A zero selects the default 8-bit plus sign resolution temperature conversions while a
one selects 11-bit plus sign resolution temperature conversions. 8-bit plus sign
conversions time is approximately 100 ms, while 11-bit plus sign conversion time is
approximately 2 seconds.
The lower nibble (4 LSBs) of the 11-bit plus sign temperature data.
<
4
>
= Temp
[0] (nibble LSB, 0.0625C),
<
5
>
= Temp [1],
<
6
>
= Temp [2],
<
7
>
= Temp 3
(nibble MSB, 0.5C). For 8-bit plus sign temperature resolution,
<
7
>
= Temp [0]
(LSB, 0.5C) while
<
4:6
>
are undefined.
1
OS Polarity
Read/Write
2
OS mode select
Read/Write
3
Temperature
Resolution
Control
Read/Write
4-7
Temp [3:0]
Read/Write
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