ATSAM3U2EA-AU Atmel, ATSAM3U2EA-AU Datasheet - Page 83
![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
Company
Part Number
Manufacturer
Quantity
Price
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13.5.5
6430D–ATARM–25-Mar-11
Exception priorities
Figure 13-3. Vector table
On system reset, the vector table is fixed at address 0x00000000. Privileged software can write to
the VTOR to relocate the vector table start address to a different memory location, in the range
0x00000080 to 0x3FFFFF80, see
As
If software does not configure any priorities, then all exceptions with a configurable priority have
a priority of 0. For information about configuring exception priorities see
• a lower priority value indicating a higher priority
• configurable priorities for all exceptions except Reset, Hard fault.
•
•
Table 13-9 on page 81
“System Handler Priority Registers” on page 192
“Interrupt Priority Registers” on page
Exception number
45
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
.
.
.
shows, all exceptions have an associated priority, with:
“Vector Table Offset Register” on page
IRQ number
29
-10
-11
-12
-13
-14
-1
-2
-5
2
1
0
174.
0x00B4
0x004C
0x0048
0x0044
0x0040
0x003C
0x0038
0x002C
0x0018
0x0014
0x0010
0x000C
0x0008
0x0004
0x0000
Offset
.
.
.
Memory management fault
Reserved for Debug
Initial SP value
Usage fault
Reserved
Reserved
Hard fault
Reserved
Bus fault
PendSV
IRQ29
Systick
SVCall
Vector
Reset
IRQ2
IRQ1
IRQ0
.
.
.
SAM3U Series
186.
83
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