ATSAM3U2EA-AU Atmel, ATSAM3U2EA-AU Datasheet - Page 511
![IC MCU 32BIT 128KB FLASH 144LQFP](/photos/6/72/67244/144l1-lqfp_sml.jpg)
ATSAM3U2EA-AU
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
Available stocks
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Part Number
Manufacturer
Quantity
Price
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6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11
sive samplings of the input of the I/O line, the PIO Controller clock must be enabled. The Input
Change Interrupt is available, regardless of the configuration of the I/O line, i.e. configured as an
input only, controlled by the PIO Controller or assigned to a peripheral function.
By default, the interrupt can be generated at any time an edge is detected on the input.
Some additional Interrupt modes can be enabled/disabled by writing in the PIO_AIMER (Addi-
tional Interrupt Modes Enable Register) and PIO_AIMDR (Additional Interrupt Modes Disable
Register). The current state of this selection can be read through the PIO_AIMMR (Additional
Interrupt Modes Mask Register)
These Additional Modes are:
In order to select an Additional Interrupt Mode:
When an input Edge or Level is detected on an I/O line, the corresponding bit in PIO_ISR (Inter-
rupt Status Register) is set. If the corresponding bit in PIO_IMR is set, the PIO Controller
interrupt line is asserted. The interrupt signals of the thirty-two channels are ORed-wired
together to generate a single interrupt signal to the Nested Vector Interrupt Controller (NVIC).
When the software reads PIO_ISR, all the interrupts are automatically cleared. This signifies that
all the interrupts that are pending when PIO_ISR is read must be handled. When an Interrupt is
enabled on a “Level”, the interrupt is generated as long as the interrupt source is not cleared,
even if some read accesses in PIO_ISR are performed.
• Rising Edge Detection
• Falling Edge Detection
• Low Level Detection
• High Level Detection
• The type of event detection (Edge or Level) must be selected by writing in the set of registers;
• The Polarity of the event detection (Rising/Falling Edge or High/Low Level) must be selected
PIO_ESR (Edge Select Register) and PIO_LSR (Level Select Register) which enable
respectively, the Edge and Level Detection. The current status of this selection is accessible
through the PIO_ELSR (Edge/Level Status Register).
by writing in the set of registers; PIO_FELLSR (Falling Edge /Low Level Select Register) and
PIO_REHLSR (Rising Edge/High Level Select Register) which allow to select Falling or
Rising Edge (if Edge is selected in the PIO_ELSR) Edge or High or Low Level Detection (if
Level is selected in the PIO_ELSR). The current status of this selection is accessible through
the PIO_FRLHSR (Fall/Rise - Low/High Status Register).
SAM3U Series
SAM3U Series
511
511
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