SAM3N0A Atmel Corporation, SAM3N0A Datasheet - Page 158

• Manufacturer Part Number: SAM3N0A
• Manufacturer: Atmel Corporation

10.20.7
10.20.7.1
10.20.7.2
10.20.7.3
158
31
23
15
31
23
15
31
23
15
7
7
7
SAM3N
Interrupt Priority Registers
IPRm
IPR4
IPR3
30
22
14
30
22
14
30
22
14
6
6
6
The IPR0-IPR8 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[32], as shown:
29
21
13
29
21
13
29
21
13
5
5
5
Table 10-27 on page 151
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[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
11011A–ATARM–04-Oct-10
24
16
24
16
24
16
8
0
8
0
8
0