ATSAM3U2EA-AU Atmel, ATSAM3U2EA-AU Datasheet - Page 689

• Manufacturer Part Number: ATSAM3U2EA-AU
• Description: IC MCU 32BIT 128KB FLASH 144LQFP
• Manufacturer: Atmel
• Series: SAM3Ur

Specifications of ATSAM3U2EA-AU

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 96MHz
• Connectivity: EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 36K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b, 8x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Controller Family/series: SAM3U
• No. Of I/o's: 96
• Ram Memory Size: 36KB
• Cpu Speed: 96MHz
• No. Of Timers: 3
• Rohs Compliant: Yes
• Processor Series: ATSAM3x
• Core: ARM Cortex M3
• Data Bus Width: 32 bit
• Data Ram Size: 36 KB
• Interface Type: 4xUSART, 2xTWI, 5xSPI, Bus
• Maximum Clock Frequency: 96 MHz
• Number Of Programmable I/os: 96
• Number Of Timers: 8
• Operating Supply Voltage: 1.62 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-CM3, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: ATSAM3U-EK
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

35.6.2
35.6.3
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11
Power Management
Interrupt
The USART is not continuously clocked. The programmer must first enable the USART Clock in
the Power Management Controller (PMC) before using the USART. However, if the application
does not require USART operations, the USART clock can be stopped when not needed and be
restarted later. In this case, the USART will resume its operations where it left off.
Configuring the USART does not require the USART clock to be enabled.
The USART interrupt line is connected on one of the internal sources of the Interrupt Controller.
Using the USART interrupt requires the Interrupt Controller to be programmed first. Note that it is
Table 35-4.
not recommended to use the USART interrupt line in edge sensitive mode.
Instance
USART0
USART1
USART2
USART3
Peripheral IDs
13
14
15
16
ID
SAM3U Series
SAM3U Series
689
689