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ADM1029ARQZ-R7 数据表(PDF) 41 Page - ON Semiconductor

部件名 ADM1029ARQZ-R7
功能描述  Dual PWM Fan Controller and Temperature Monitor for High Availability Systems
PDF  50 Pages
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制造商  ONSEMI [ON Semiconductor]
网页  http://www.onsemi.com
标志 ONSEMI - ON Semiconductor

ADM1029ARQZ-R7 数据表(HTML) 41 Page - ON Semiconductor

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ADM1029
FAN REGISTERS
Register 02h – Fan Supported By Controller (Power-On Default 03h)
Bit
Name
R/W
Description
0
Fan 1 = 1
R
This bit set to 1 means the ADM1029 can support Fan 1.
1
Fan 2 = 1
R
This bit set to 1 means the ADM1029 can support Fan 2.
2
Reserved
R
Unused. Will read back 0.
3
Reserved
R
Unused. Will read back 0.
4
Reserved
R
Unused. Will read back 0.
5
Reserved
R
Unused. Will read back 0.
6
Reserved
R
Unused. Will read back 0.
7
Reserved
R
Unused. Will read back 0.
Register 03h – Fans Supported In System (Power-On Default 0000 00?1)
Bit
Name
R/W
Description
0
Fan 1 = 1
R/W
Indicates that Fan 1 is being used. Set to 1 on power-up, but can be overwrit-
ten by software.
1
Fan 2 = ?
R/W
Indicates that Fan 2 is being used. Set by Pin 18 (TMIN/INSTALL) on
power-up, but can be overwritten by software.
2
Reserved
R
Unused. Will read back 0.
3
Reserved
R
Unused. Will read back 0.
4
Reserved
R
Unused. Will read back 0.
5
Reserved
R
Unused. Will read back 0.
6
Reserved
R
Unused. Will read back 0.
7
Reserved
R
Unused. Will read back 0.
NOTE
Question marks on this and following pages indicate bit settings that depend on the state of certain pins on power-up.
Register 07h – Set Fan x Alarm Speed (Power-On Default 00h)
Bit
Name
R/W
Description
0
Fan 1 Alarm Speed = 0
R/W
When set to 1, Fan 1 will run at Alarm Speed.
1
Fan 2 Alarm Speed = 0
R/W
When set to 1, Fan 2 will run at Alarm Speed.
2
Reserved
R
Unused. Will read back 0.
3
Reserved
R
Unused. Will read back 0.
4
Reserved
R
Unused. Will read back 0.
5
Reserved
R
Unused. Will read back 0.
6
Reserved
R
Unused. Will read back 0.
7
Reserved
R
Unused. Will read back 0.
Register 08h – Set Fan x Hot-Plug Speed (Power-On Default 00h)
Bit
Name
R/W
Description
0
Fan 1 Hot-Plug Speed = 0
R/W
When set to 1, Fan 1 will run at Hot-Plug Speed.
1
Fan 2 Hot-Plug Speed = 0
R/W
When set to 1, Fan 2 will run at Hot-Plug Speed.
2
0
R
Unused. Will read back 0.
3
0
R
Unused. Will read back 0.
4
0
R
Unused. Will read back 0.
5
0
R
Unused. Will read back 0.
6
0
R
Unused. Will read back 0.
7
0
R
Unused. Will read back 0.



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