ATSAM3X4EA-AU Atmel, ATSAM3X4EA-AU Datasheet - Page 164

• Manufacturer Part Number: ATSAM3X4EA-AU
• Description: ARM Microcontrollers - MCU QFP144,GREEN, IND TEMP, MRL A
• Manufacturer: Atmel

Specifications of ATSAM3X4EA-AU

• Rohs: yes
• Core: ARM Cortex M3
• Processor Series: SAM3X
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 84 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.4 V to 3.6 V
• Operating Temperature Range: - 40 C to +85 C
• Package / Case: LQFP-144
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 60

12.20.7
12.20.7.1
12.20.7.2
12.20.7.3
164
164
31
23
15
31
23
15
31
23
15
7
7
7
SAM3X/A
SAM3X/A
Interrupt Priority Registers
IPRm
IPR4
IPR3
30
22
14
30
22
14
30
22
14
6
6
6
The IPR0-IPR7 registers provide a 4-bit priority field for each interrupt (See the “Peripheral Iden-
tifiers” section of the datasheet for more details). These registers are byte-accessible. See the
register summary in
fields, that map up to four elements in the CMSIS interrupt priority array IP[0] to IP[29], as shown:
29
21
13
29
21
13
29
21
13
5
5
5
Table 12-27 on page 157
28
20
12
28
20
12
28
20
12
4
4
4
IP[4m+3]
IP[4m+2]
IP[4m+1]
IP[4m]
IP[19]
IP[18]
IP[17]
IP[16]
IP[15]
IP[14]
IP[13]
IP[12]
27
19
11
27
19
11
27
19
11
3
3
3
for their attributes. Each register holds four priority
26
18
10
26
18
10
26
18
10
2
2
2
25
17
25
17
25
17
9
1
9
1
9
1
11057B–ATARM–28-May-12
11057B–ATARM–28-May-12
24
16
24
16
24
16
8
0
8
0
8
0