T84C5112-RKFCL datasheet(60/97 Pages) ATMEL

tên linh kiện	T84C5112-RKFCL

Giải thích chi tiết về linh kiện	8-bit Microcontroller with A/D converter

PDF	97 Pages

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nhà sản xuất	ATMEL [ATMEL Corporation]

Trang chủ	http://www.atmel.com

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60 / 97 page

Rev. B - November 10, 2000

Preliminary

T80C5112

Figure 28. ADC Description

Figure 29 shows the timing diagram of a complete conversion. For simplicity, the figure depicts the waveforms in

idealized form and do not provide precise timing information. For ADC characteristics and timing parameters refer

to the Section ÒAC CharacteristicsÓ of the T80C5112 datasheet.

Figure 29. Timing Diagram

NOTE:

Tsetup = 4 us

14.4. ADC Converter Operation

A start of single A/D conversion is triggered by setting bit ADSST (ADCON.3).

The busy flag ADSST(ADCON.3) remains set as long as an A/D conversion is running. After completion of the

A/D conversion, it is cleared by hardware. When a conversion is running, this flag can be read only, a write has

no effect.

AIN0/P4.0

AIN1/P4.1

AIN2/P4.2

AIN3/P4.3

AIN4/P4.4

AIN5/P4.5

AIN6/P4.6

AIN7/P4.7

000

001

010

011

100

101

110

111

SCH2

ADCON.2

SCH0

ADCON.0

SCH1

ADCON.1

CONV_CK

ADEN

ADCON.5

ADSST

ADCON.3

ADEOC

ADCON.4

ADC

Interrupt

Request

EADC

IE1.1

CONTROL

AVSS

Sample and Hold

ADDH

Vref

R/2R DAC

ADDL

SAR

ADCIN

VAGND

SELREF

ADCLK.7

2.4V

VADREF

ADEN

ADCON.5

ADEN

ADSST

ADEOC

TSETUP

TCONV

CONV_CK

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