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MEC1322 データシート(PDF) 278 Page - Microchip Technology

部品番号 MEC1322
部品情報  Keyboard and Embedded Controller for Notebook PC
PDF  456 Pages
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メーカー  MICROCHIP [Microchip Technology]
ホームページ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MEC1322 データシート(HTML) 278 Page - Microchip Technology

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MEC1322
DS00001719D-page 278
 2014 - 2015 Microchip Technology Inc.
24.0 TACH
24.1
Introduction
This block monitors TACH output signals (or locked rotor signals) from various types of fans, and determines their
speed.
24.2
References
No references have been cited for this feature.
24.3
Terminology
There is no terminology defined for this section.
24.4
Interface
This block is designed to be accessed externally via the pin interface and internally via a registered host interface.
24.5
Signal Description
24.6
Host Interface
The registers defined for the TACH are accessible by the various hosts as indicated in Section 24.11, "EC-Only Regis-
ters".
FIGURE 24-1:
I/O DIAGRAM OF BLOCK
TABLE 24-1:
SIGNAL DESCRIPTION TABLE
Name
Direction
Description
TACH INPUT
Input
Tachometer signal from TACHx Pin.
Signal Description
TACH
Interrupts
Power, Clocks and Reset
Host Interface



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