Datasheet

Chapter 9 Analog-to-Digital Converter (S08ADC10V1)
MC9S08SG32 Data Sheet, Rev. 8
Freescale Semiconductor 127
9.1.6 Features
Features of the ADC module include:
• Linear successive approximation algorithm with 10-bit resolution
• Up to 28 analog inputs
1
• Output formatted in 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
9.1.7 ADC Module Block Diagram
Figure 9-2 provides a block diagram of the ADC module
1. Number of analog inputs varies according to the device and may be from external or internal sources. Refer to the introduction
section to this chapter for AD0–AD27 channel input assignments.