mc68hc912dg128 Freescale Semiconductor, Inc, mc68hc912dg128 Datasheet - Page 297

• Manufacturer Part Number: mc68hc912dg128
• Description: M68hc12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Technical Data — MC68HC912DG128
16.1 Contents
16.2 Introduction
MC68HC912DG128 — Rev 3.0
MOTOROLA
16.2
16.3
16.4
16.5
The MC68HC912DG128 has two identical ATD modules identified as
ATD0 and ATD1. Except for the V
all pins are duplicated and indexed with ‘0’ or ‘1’ in the following
description. An ‘x’ indicates either ‘0’ or ‘1’.
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 P clock. 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
ATD Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
ATD Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Section 16. Analog-to-Digital Converter
Analog-to-Digital Converter
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DDA
and V
SSA
Analog supply voltage,
Technical Data
297