ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 1083

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

Specifications of ATSAM3U-EK

• Contents: Board
• Processor To Be Evaluated: SAM3U
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3 V
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: SAM3U4E
• Silicon Family Name: SAM3U
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM3U
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 42-3. GOVRE and OVREx Flag Behavior
6430D–ATARM–25-Mar-11
(ADC_CHSR)
(ADC_CHSR)
ADC_LCDR
ADC_CDR0
ADC_CDR1
(ADC_SR)
(ADC_SR)
(ADC_SR)
(ADC_SR)
(ADC_SR)
GOVRE
ADTRG
DRDY
OVRE0
EOC0
EOC1
CH0
CH1
Undefined Data
Undefined Data
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.
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.
Conversion
Undefined Data
Conversion
Data A
Data A
Data B
Conversion
Data B
SAM3U Series
Data C
Read ADC_CDR1
Data C
Read ADC_CDR0
Read ADC_SR
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