Rainbow Electronics AT91CAP9S250A - Manual (Page 945)

945
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
If the ADC_CDR is not read before further incoming data is converted, the corresponding Over-
run Error (OVRE) flag is set in the Status Register (ADC_SR).
In the same way, new data converted when DRDY is high sets the bit GOVRE (General Overrun
Error) in ADC_SR.
The OVRE and GOVRE flags are automatically cleared when ADC_SR is read.
Figure 46-3. GOVRE and OVREx Flag Behavior
Warning: If the corresponding channel is disabled during a conversion or if it is disabled and
then reenabled during a conversion, its associated data and
its corresponding EOC and OVRE
flags in ADC_SR are unpredictable.
EOC0
GOVRE
CH0
(ADC_CHSR)
(ADC_SR)
(ADC_SR)
ADTRG
EOC1
CH1
(ADC_CHSR)
(ADC_SR)
OVRE0
(ADC_SR)
Undefined Data Data A Data B ADC_LCDR
Undefined Data Data A ADC_CDR0
Undefined Data Data B
ADC_CDR1
Data C
Data C
Conversion
Conversion
Read ADC_SR
DRDY
(ADC_SR)
Read ADC_CDR1
Read ADC_CDR0
Conversion