EMC2302 datasheet(43/70 Pages) MICROCHIP

부품명	EMC2302

상세설명	Single/Multiple RPM-Based PWM Fan Controller

PDF	70 Pages

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제조업체	MICROCHIP [Microchip Technology]

홈페이지	http://www.microchip.com

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43 / 70 page

 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.

VALID TACH - MAXIMUM VALID TACH COUNTS REGISTER

(ADDRESSES 39H, 49H, 59H, 69H, 79H)

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

bit 0

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