MAC7200 datasheet(820/976 Pages) FREESCALE

Part #	MAC7200

Description	MAC7200 Microcontroller Family Reference Manual

PDF	976 Pages

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Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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820 / 976 page

The DMADC1032 Module

MAC7200 Microcontroller Family Reference Manual, Rev. 2

742

Freescale Semiconductor

33.8.2

Block Diagram

Figure 33-1. DMADC1032 Block Diagram

33.8.3

Features of DMADC1032

•

DMA interface

•

Command words for conversion are stored in on-chip or external memory

•

12-bit ATD with 9-bit accuracy @10.67MHz ATD clock

•

≤ 2 μsec Single Conversion Time

•

Detection of a broken sensor pin (Predischarge feature)

•

Programmable Sample Time

•

Left/Right Justified, Signed/Unsigned 8/10/11/12 Bit Result Data

•

Conversion Completion Interrupt Generation

•

Analog Input Multiplexer for 32 Analog Input Channels

VRH

REFBYPC

VRL

Reference

voltages

AN31

AN0

Prescaler

Conver-

sion

control

Trigger

ATD clock

Command

words

Result

Result adjustment

Raw result

Flags

Bus interface / registers

Analog conversion circuit

RX req.

RX done

TX req.

TX done

Data Bus &

Sys. Clock

Sample

VDDA

VSSA

Interrupt

Systrig0/1

RSD

conversion

algorithm

Capacitor

(MADD)

System Clock

MAC7200 Datasheet(PDF) 820 Page - Freescale Semiconductor, Inc

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