MEC1322 datasheet(368/456 Pages) MICROCHIP

tên linh kiện	MEC1322

Giải thích chi tiết về linh kiện	Keyboard and Embedded Controller for Notebook PC

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MEC1322

DS00001719D-page 368

 2014 - 2015 Microchip Technology Inc.

33.0 ANALOG TO DIGITAL CONVERTER

33.1

Introduction

This block is designed to convert external analog voltage readings into digital values. It consists of a single successive-

approximation Analog-Digital Converter that can be shared among five inputs.

33.2

References

No references have been cited for this chapter

33.3

Terminology

No terminology is defined for this chapter

33.4

Interface

This block is designed to be accessed externally via the pin interface and internally via a registered host interface.

33.5

Signal Description

The Signal Description Table lists the signals that are typically routed to the pin interface.

Note:

Transitions on ADC GPIOs are not permitted when Analog to Digital Converter readings are being taken.

FIGURE 33-1:

I/O DIAGRAM OF BLOCK

TABLE 33-1:

SIGNAL DESCRIPTION TABLE

Name

Direction

Description

ADC 4:0

Input

ADC Analog Voltage Input 4:0 from pins

Note:

VREF_ADC, the Analog Voltage Reference of 3.0V, is internally generated in the IP block.

Signal Description

Analog to Digital Converter

Interrupts

Power, Clocks and Reset

Host Interface

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