SAM3U2C Atmel Corporation, SAM3U2C Datasheet - Page 1069

• Manufacturer Part Number: SAM3U2C
• Manufacturer: Atmel Corporation

Specifications of SAM3U2C

• Flash (kbytes): 128 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 96 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 28
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 57
• Ext Interrupts: 57
• Usb Transceiver: 1
• Quadrature Decoder Channels: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device
• Spi: 4
• Twi (i2c): 1
• Uart: 4
• Ssc: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 36
• Self Program Memory: YES
• External Bus Interface: 1
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.62 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Figure 41-4. GOVRE and OVREx Flag Behavior
6430E–ATARM–29-Aug-11
(ADC12B_CHSR)
(ADC12B_CHSR)
ADC12B_LCDR
ADC12B_CDR0
ADC12B_CDR1
(ADC12B_SR)
(ADC12B_SR)
(ADC12B_SR)
(ADC12B_SR)
(ADC12B_SR)
GOVRE
OVRE0
Trigger
DRDY
EOC0
EOC1
CH0
CH1
If the ADC12B_CDR is not read before further incoming data is converted, the corresponding
Overrun Error (OVRE) flag is set in the Status Register (ADC12B_SR).
Likewise, new data converted when DRDY is high sets the GOVRE bit (General Overrun Error)
in ADC12B_SR.
The OVRE and GOVRE flags are automatically cleared when ADC12B_SR is read.
Undefined Data
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 ADC12B_SR are unpredictable.
The ADC12B can be triggered externally by software or internally from the Timer Counter or
PWM.
Undefined Data
Conversion
Undefined Data
Conversion
Data CH0
Data CH0
Data CH1
Conversion
Data CH1
SAM3U Series
Data CH0
Read ADC12B_CDR1
Data CH0
Read ADC12B_CDR0
Read ADC12B_SR
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