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ADT7490ARQZ-R7 bảng dữ liệu(PDF) 66 Page - ON Semiconductor

tên linh kiện ADT7490ARQZ-R7
Giải thích chi tiết về linh kiện  dBCool Remote Thermal Monitor and Fan Controller with PECI Interface
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ADT7490ARQZ-R7 bảng dữ liệu(HTML) 66 Page - ON Semiconductor

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Table 71. Register 0x7B — TACH Pulses per Revolution Register (Power−On Default = 0x55)
Bit No.
Mnemonic
R/W
Description
[1:0]
FAN1
R/W
Sets number of pulses to be counted when measuring Fan 1 speed. Can be used to
determine fan pulses per revolution for unknown fan type.
Bit Code
Pulses Counted
00
01
10
11
1
2 (default)
3
4
[3:2]
FAN2
R/W
Sets number of pulses to be counted when measuring Fan 2 speed. Can be used to
determine fan pulses per revolution for unknown fan type.
Bit Code
Pulses Counted
00
01
10
11
1
2 (default)
3
4
[5:4]
FAN3
R/W
Sets number of pulses to be counted when measuring Fan 3 speed. Can be used to
determine fan pulses per revolution for unknown fan type.
Bit Code
Pulses Counted
00
01
10
11
1
2 (default)
3
4
[7:6]
FAN4
R/W
Sets number of pulses to be counted when measuring Fan 4 speed. Can be used to
determine fan pulses per revolution for unknown fan type.
Bit Code
Pulses Counted
00
01
10
11
1
2 (default)
3
4



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