Interrupt - Fujitsu 8FX Hardware Manual

CHAPTER 15 8/10-BIT A/D CONVERTER

15.4 Interrupt

15.4 Interrupt
The completion of conversion during the operation of the A/D converter is an
interrupt source of the 8/10-bit A/D converter.
■ Interrupt During 8/10-bit A/D Converter Operation
When A/D conversion is completed, the interrupt request flag bit (ADC1:ADI) is set to "1".
Then if the interrupt request enable bit has been enabled (ADC2:ADIE = 1), an interrupt
request is made to the interrupt controller. Write "0" to the ADI bit using the interrupt service
routine to clear the interrupt request.
The ADI bit is set to "1" when A/D conversion is completed, irrespective of the value of the
ADIE bit.
The CPU cannot return from interrupt processing if the interrupt request flag bit (ADC1:ADI)
is "1" with interrupt requests having been enabled (ADC2:ADIE = 1). Always clear the ADI bit
in the interrupt service routine.
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MB95630H Series
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