Datasheet

MC68HC908QY4•MC68HC908QT4•MC68HC908QY2•MC68HC908QT2•MC68HC908QY1•MC68HC908QT1
156 Analog-to-Digital Converter (ADC) MOTOROLA
Analog-to-Digital Converter (ADC)
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11.6.2 Stop Mode
The ADC module is inactive after the execution of a STOP instruction.
Any pending conversion is aborted. ADC conversions resume when the
MCU exits stop mode. Allow one conversion cycle to stabilize the analog
circuitry before attempting a new ADC conversion after exiting stop
mode.
11.7 Input/Output Signals
The ADC module has four channels that are shared with I/O port A.
ADC voltage in (ADCVIN) is the input voltage signal from one of the four
ADC channels to the ADC module.
11.8 Input/Output Registers
These I/O registers control and monitor ADC operation:
• ADC status and control register (ADSCR)
• ADC data register (ADR)
• ADC clock register (ADICLK)