MC68HC08AS32 Datasheet, PDF (310/394 Pages) Motorola, Inc – M68HC08 Family of 8-bit microcontroller units (MCUs)

Analog-to-Digital Converter (ADC)
19.2 Introduction
This section describes the 8-bit analog-to-digital converter (ADC).
19.3 Features
Features of the ADC module include:
• 15 channels (52-PLCC) with multiplexed input
• Linear successive approximation
• 8-bit resolution
• Single or continuous conversion
• Conversion complete flag or conversion complete interrupt
• Selectable ADC clock
19.4 Functional Description
Fifteen ADC channels are available for sampling external sources at
pins PTD6/ATD14/TCLK–PTD0/ATD8 and PTB7/ATD7–PTB0/ATD0.
An analog multiplexer allows the single ADC converter to select one of
the 15 ADC channels as ADC voltage input (ADCVIN). ADCVIN is
converted by the successive approximation register-based counters.
When the conversion is completed, ADC places the result in the ADC
data register and sets a flag or generates an interrupt.
(See Figure 19-1.)
Advance Information
310
Analog-to-Digital Converter (ADC)
MC68HC08AS32 — Rev. 3.0
MOTOROLA