MC68HC908GT16 Datasheet, PDF (90/412 Pages) Motorola, Inc – Microcontrollers

Analog-to-Digital Converter (ADC)
5.2 Introduction
This section describes the 8-bit analog-to-digital converter (ADC).
5.3 Features
Features of the ADC module include:
• Eight channels with multiplexed input
• Linear successive approximation with monotonicity
• 8-bit resolution
• Single or continuous conversion
• Conversion complete flag or conversion complete interrupt
• Selectable ADC clock
5.4 Functional Description
The ADC provides eight pins for sampling external sources at pins
PTB7/AD7–PTB0/AD0. An analog multiplexer allows the single ADC
converter to select one of eight ADC channels as ADC voltage in
(V_ADIN). V_ADIN is converted by the successive approximation register-
based analog-to-digital converter. When the conversion is completed,
ADC places the result in the ADC data register and sets a flag or
generates an interrupt. See Figure 5-1.
Technical Data
90
MC68HC908GT16 • MC68HC908GT8 — Rev. 2
Analog-to-Digital Converter (ADC)
MOTOROLA