NUMICRO-SDK Nuvoton Technology Corporation of America, NUMICRO-SDK Datasheet - Page 492

• Manufacturer Part Number: NUMICRO-SDK
• Description: KIT EVAUATION NUC100/120/130/140
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™r
• Type: MCUr

Specifications of NUMICRO-SDK

• Contents: Board, Cable, CD, Nu-Link
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: NUC100, NUC120, NUC130, NUC140

5.16.4.8 Interrupt Sources
5.16.4.9 Peripheral DMA Request
The A/D converter generates a conversion end ADF in ADSR register upon the end of A/D
conversion. If ADIE bit in ADCR is set then conversion end interrupt request ADC_INT is
generated. If CMPIE bit is enabled, when A/D conversion result meets setting in ADCMPR
register, monitor interrupt is generated, ADC_INT will be set also. CPU can clear CMPF and ADF
to stop interrupt request.
When A/D conversion is finished, the conversion result will be loaded into ADDR register and
VALID bit will be set to 1. If the PTEN bit of ADCR is set, ADC controller will generate a request to
PDMA. User can use PDMA to transfer the conversion results to a user-specified memory space
without CPU's intervention. The source address of PDMA operation is fixed at ADPDMA, no
matter what channels was selected. When PDMA is transferring the conversion result, ADC will
continue converting the next selected channel if the operation mode of ADC is single scan mode
or continuous scan mode. User can monitor current PDMA transfer data through reading
ADPDMA register. If ADC completes the conversion of a selected channel and the last conversion
result of the same channel has not been transferred by PDMA, OVERUN bit of the corresponding
channel will be set and the last ADC conversion result will be overwrite by the new ADC
conversion result. PDMA will transfer the latest data of selected channels to the user-specified
destination address.
NuMicro™ NUC100 Series Technical Reference Manual
Figure 5-101 A/D Controller Interrupt
- 492 -
Publication Release Date: Dec. 22, 2010
Revision V1.06