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EMC2302 bảng dữ liệu(PDF) 43 Page - Microchip Technology

tên linh kiện EMC2302
Giải thích chi tiết về linh kiện  Single/Multiple RPM-Based PWM Fan Controller
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Trang chủ  http://www.microchip.com
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EMC2302 bảng dữ liệu(HTML) 43 Page - Microchip Technology

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 2021 Microchip Technology Inc.
DS20006532A-page 43
EMC2301/2/3/5
6.20
Valid TACH Count Registers
The Valid TACH Count registers store the maximum
TACH Reading register value to indicate that each fan
is spinning properly (see Section 4.4.2 “Valid
Tachometer Readings”). The contents of the register
represent the weighting of each bit in determining the
final Valid Tach count.
REGISTER 6-19:
VALID TACH - MAXIMUM VALID TACH COUNTS REGISTER
(ADDRESSES 39H, 49H, 59H, 69H, 79H)
RW-0
RW-0
RW-0
RW-0
RW-0
RW-0
RW-0
RW-0
FxVT[7:0]
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-0
FxVT[7:0]: Fan Drive Max Tach Counts, where “x” represents 1 through 5 based on device features.
bit 7
4096
bit 6
2048
bit 5
1024
bit 4
512
bit 3
256
bit 2
128
bit 1
64
bit 0
32



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