Z8FMC16100 Datasheet, PDF(222/402 Page) Zilog, Inc. – Z8 Encore-R Motor Control Flash MCUs

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Z8FMC16100 Datasheet, PDF (222/402 Pages) Zilog, Inc. – Z8 Encore-R Motor Control Flash MCUs

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Z8 Encore!Â® Motor Control Flash MCUs

Product Specification

200

Internal Voltage

Reference Generator

VR2

RBUF

REFEN

VREF

Data 10

Output

Analog-to-Digital

Converter

Reference Input

BUSY

Analog Input

Sample-and-Hold

Amplifier

ADCLK

ADCEN

START

ANAIN[2:0]

Figure 36. Analog-to-Digital Converter Block Diagram

ANA0

ANA1

ANA2

ANA3

ANA4

ANA5

ANA6

ANA7

SAMPLE/HOLD

Operation

The ADC converts the analog input, ANAX, to a 10-bit digital representation. The equa-

tion for calculating the digital value is represented by:

ADC Output = 1024 x (ANAx Ã· VREF)

Assuming zero gain and offset errors, any voltage outside the ADC input limits of AVSS

and VREF returns all 0s or 1s, respectively.

A new conversion can be initiated by either software write to the ADC Control Registerâs

START bit or by PWM trigger. Refer to the Synchronization of PWM and Analog-to-Digi-

tal Converter section on page 73 for information about the PWM trigger.

Analog-to-Digital Converter

PRELIMINARY

PS024604-1005

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