ATSAM3U2EA-CU Atmel, ATSAM3U2EA-CU Datasheet - Page 175

• Manufacturer Part Number: ATSAM3U2EA-CU
• Description: IC MCU 32BIT 128KB FLSH 144LFBGA
• Manufacturer: Atmel
• Series: SAM3Ur

Specifications of ATSAM3U2EA-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: 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-LFBGA
• 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

13.19.7.4
13.19.7.5
13.19.7.6
• Priority, byte offset 3
• Priority, byte offset 2
• Priority, byte offset 1
• Priority, byte offset 0
Each priority field holds a priority value, 0-15. The lower the value, the greater the priority of the corresponding interrupt.
The processor implements only bits[7:4] of each field, bits[3:0] read as zero and ignore writes.
See
interrupt priority array, that provides the software view of the interrupt priorities.
6430D–ATARM–25-Mar-11
“The CMSIS mapping of the Cortex-M3 NVIC registers” on page 167
31
23
15
31
23
15
31
23
15
7
7
7
IPR2
IPR1
IPR0
30
22
14
30
22
14
30
22
14
6
6
6
29
21
13
29
21
13
29
21
13
5
5
5
28
20
12
28
20
12
28
20
12
4
4
4
IP[11]
IP[10]
IP[9]
IP[8]
IP[7]
IP[6]
IP[5]
IP[4]
IP[3]
IP[2]
IP[1]
IP[0]
27
19
11
27
19
11
27
19
11
3
3
3
for more information about the IP[0] to IP[29]
26
18
10
26
18
10
26
18
10
2
2
2
SAM3U Series
25
17
25
17
25
17
9
1
9
1
9
1
24
16
24
16
24
16
8
0
8
0
8
0
175