MC68HC912D60A MOTOROLA [Motorola, Inc], MC68HC912D60A Datasheet - Page 349

• Manufacturer Part Number: MC68HC912D60A
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Technical Data — MC68HC912D60A
18.1 Contents
18.2 Introduction
MC68HC912D60A — Rev 3.0
MOTOROLA
18.2
18.3
18.4
18.5
18.6
18.7
18.8
18.9
The 112TQFP version of the MC68HC912D60A has two identical ATD
modules identified as ATD0 and ATD1. Except for the V
Analog supply voltage, all pins are duplicated and indexed with ‘0’ or ‘1’
in the following description. An ‘x’ indicates either ‘0’ or ‘1’.
The 80QFP version has only one ATD available, ATD0. ATD1 is not
bonded out. As this module defaults to disabled on reset and it's I/O are
inputs by default it requires no configuration.
The ATD module is an 8-channel, 10-bit or 8-bit, multiplexed-input,
successive-approximation analog-to-digital converter. It does not
require external sample and hold circuits because of the type of charge
redistribution technique used. The ATD converter timing can be
synchronized to the system PCLK. The ATD module consists of a 16-
word (32-byte) memory-mapped control register block used for control,
testing and configuration.
Freescale Semiconductor, Inc.
For More Information On This Product,
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .351
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .352
ATD Operational Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .354
ATD Operation In Different MCU Modes . . . . . . . . . . . . . . . . 355
General Purpose Digital Input Port Operation . . . . . . . . . . . .357
Application Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . .358
ATD Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Section 18. Analog-to-Digital Converter
Analog-to-Digital Converter
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DDA
Technical Data
and V
SSA
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