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Analog-to-Digital Converter (S08ADC12V1)
MCF51QE128 MCU Series Reference Manual, Rev. 3
Freescale Semiconductor 219
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11.1.4 Features
Features of the ADC module include:
• Linear successive approximation algorithm with 12-bit resolution
• Up to 28 analog inputs
• Output formatted in 12-, 10-, or 8-bit right-justified unsigned format
• Single or continuous conversion (automatic return to idle after single conversion)
• Configurable sample time and conversion speed/power
• Conversion complete flag and interrupt
• Input clock selectable from up to four sources
• Operation in wait or stop3 modes for lower noise operation
• Asynchronous clock source for lower noise operation
• Selectable asynchronous hardware conversion trigger
• Automatic compare with interrupt for less-than, or greater-than or equal-to, programmable value
11.1.5 Block Diagram
Figure 11-2 provides a block diagram of the ADC module.