SAM3U1C Atmel Corporation, SAM3U1C Datasheet - Page 670

• Manufacturer Part Number: SAM3U1C
• Manufacturer: Atmel Corporation

Specifications of SAM3U1C

• Flash (kbytes): 64 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): 20
• 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

34.3
Figure 34-1. UART Functional Block Diagram
Table 34-1.
34.4
34.4.1
34.4.2
670
670
Pin Name
URXD
UTXD
Block Diagram
Product Dependencies
Management
SAM3U Series
SAM3U Series
Controller
I/O Lines
Power Management
Power
UART Pin Description
APB
Peripheral
Bridge
The UART pins are multiplexed with PIO lines. The programmer must first configure the corre-
sponding PIO Controller to enable I/O line operations of the UART.
Table 34-2.
The UART clock is controllable through the Power Management Controller. In this case, the pro-
grammer must first configure the PMC to enable the UART clock. Usually, the peripheral
identifier used for this purpose is 1.
Description
UART Receive Data
UART Transmit Data
Instance
UART
UART
MCK
I/O Lines
Baud Rate
Generator
UART
Peripheral DMA Controller
Signal
URXD
UTXD
Transmit
Interrupt
Receive
Control
Type
Input
Output
I/O Line
PA11
PA12
uart_irq
Parallel
Output
Input/
Peripheral
6430E–ATARM–29-Aug-11
6430E–ATARM–29-Aug-11
A
A
URXD
UTXD