ATSAM3U4CA-CU Atmel, ATSAM3U4CA-CU Datasheet - Page 83

• Manufacturer Part Number: ATSAM3U4CA-CU
• Description: IC MCU 32BIT 256KB FLSH 100TFBGA
• Manufacturer: Atmel
• Series: SAM3Ur

Specifications of ATSAM3U4CA-CU

• 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: 57
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 52K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 4x10b, 4x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TFBGA
• Processor Series: ATSAM3x
• Core: ARM Cortex M3
• Data Bus Width: 32 bit
• Data Ram Size: 52 KB
• Interface Type: 3xUSART, TWI, 4xSPI, Bus
• Maximum Clock Frequency: 96 MHz
• Number Of Programmable I/os: 57
• 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: Lead free / RoHS Compliant

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