MC68HC708MP16 Datasheet, PDF (354/398 Pages) Freescale Semiconductor, Inc – Microcontrollers

Analog-to-Digital Converter (ADC)
19.2 Introduction
This section describes the analog-to-digital convertor. The ADC is an
8-bit analog-to-digital convertor.
19.3 Features
Features of the ADC module include:
• 10 channels with multiplexed input
• Linear successive approximation
• 8-bit resolution
• Single or continous conversion
• Conversion complete flag or conversion complete interrupt
• Selectable ADC Clock
19.4 Functional Description
Ten ADC channels are available for sampling external sources at pins
PTC1/ATD9:PTC0/ATD8 and PTB7/ATD7:PTB0/ATD0. An analog
multiplexer allows the single ADC converter to select one of the 10 ADC
channels as ADC voltage IN (ADCVIN). ADCVIN is converted by the
successive approximation register based counter. When the conversion
is completed, the ADC places the result in the ADC data register and
sets a flag or generates an interrupt. (See Figure 19-1.)
NOTE: DMA section and associated functions are only valid if the MCU has a
DMA module.
Technical Data
354
Analog-to-Digital Converter (ADC)
MC68HC708MP16 — Rev. 3.1
Freescale Semiconductor