SAM3X8E Atmel Corporation, SAM3X8E Datasheet - Page 160

• Manufacturer Part Number: SAM3X8E
• Manufacturer: Atmel Corporation

11.20.7
11.20.7.1
11.20.7.2
11.20.7.3
160
160
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 11-27 on page 153
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
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
24
16
24
16
24
16
8
0
8
0
8
0