SH7146 Datasheet, PDF (666/1022 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 15 A/D Converter (ADC)
15.5 Interrupt Sources and DTC Transfer Request
The A/D converter can generate an A/D conversion end interrupt request (ADI). The ADI
interrupt can be enabled by setting the ADIE bit in the A/D control/status register (ADCSR) to 1,
or disabled by clearing the ADIE bit to 0.
The DTC can be activated by an ADI interrupt. In this case an interrupt request is not sent to the
CPU.
When the DTC is activated by an ADI interrupt, the ADF bit in ADCSR is automatically cleared
when data is transferred by the DTC. Having the converted data read by the DTC in response to an
ADI interrupt enables continuous conversion to be achieved without imposing a load on software.
Table 15.6 A/D Converter Interrupt Source
Name
ADI0
ADI1
ADI2
Interrupt Source
A/D_0 conversion completed
A/D_1 conversion completed
A/D_2 conversion completed
Interrupt Source Flag
ADF in ADCSR_0
ADF in ADCSR_1
ADF in ADCSR_2
DTC Activation
Possible
Possible
Possible
Rev. 3.00 May 17, 2007 Page 622 of 974
REJ09B0229-0300