P912XDP512F0MPVR datasheet(159/1348 Pages) FREESCALE

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MC9S12XDP512 Data Sheet, Rev. 2.21

Freescale Semiconductor

159

Chapter 5 Analog-to-Digital Converter (S12ATD10B8CV2)

5.1

Introduction

The ATD10B8C is an 8-channel, 10-bit, multiplexed input successive approximation analog-to-digital

converter. Refer to device electrical speciﬁcations for ATD accuracy.

5.1.1

Features

•

8/10-bit resolution

•7

µsec, 10-bit single conversion time

•

Sample buffer ampliﬁer

•

Programmable sample time

•

Left/right justiﬁed, signed/unsigned result data

•

External trigger control

•

Conversion completion interrupt generation

•

Analog input multiplexer for 8 analog input channels

•

Analog/digital input pin multiplexing

•

1-to-8 conversion sequence lengths

•

Continuous conversion mode

•

Multiple channel scans

•

Conﬁgurable external trigger functionality on any AD channel or any of four additional external

trigger inputs. The four additional trigger inputs can be chip external or internal. Refer to the device

overview chapter for availability and connectivity.

•

Conﬁgurable location for channel wrap around (when converting multiple channels in a sequence).

5.1.2

Modes of Operation

5.1.2.1

Conversion Modes

There is software programmable selection between performing single or continuous conversion on a single

channel or multiple channels.

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