Datasheet

Chapter 19
Analog-to-digital converter (ADC)
19.1 Introduction
The 12-bit analog-to-digital converter (ADC) is a successive approximation ADC
designed for operation within an integrated microcontroller system-on-chip.
19.1.1 Features
Features of the ADC module include:
• Linear Successive Approximation algorithm with 8-, 10-, or 12-bit resolution
• Up to 16 external analog inputs, external pin inputs, and 5 internal analog inputs
including internal bandgap, temperature sensor, and references
• Output formatted in 8-, 10-, or 12-bit right-justified unsigned format
• Single or Continuous Conversion (automatic return to idle after single conversion)
• Support up to eight result FIFO with selectable FIFO depth
• 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
MC9S08PA60 Reference Manual, Rev. 1, 9/2012
Freescale Semiconductor, Inc. 523