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7.6.2.6
Interrupt Priority Register
Each interrupt is provided with eight bits of an Interrupt Priority Register.
The following shows the addresses of the Interrupt Priority Registers corresponding to interrupt numbers.
31
0xE000_E400
0xE000_E404
0xE000_E408
0xE000_E40C
0xE000_E410
0xE000_E414
0xE000_E418
0xE000_E41C
0xE000_E420
0xE000_E424
0xE000_E428
0xE000_E42C
0xE000_E430
0xE000_E434
0xE000_E438
0xE000_E43C
0xE000_E440
0xE000_E444
0xE000_E448
0xE000_E44C
The number of bits to be used for assigning a priority varies with each product. This product uses three
bits for assigning a priority.
The following shows the fields of the Interrupt Priority Registers for interrupt numbers 0 to 3. The Inter-
rupt Priority Registers for all other interrupt numbers have the identical fields. Unused bits return "0"
when read, and writing to unused bits has no effect.
31
bit symbol
PRI_3
After reset
0
23
bit symbol
PRI_2
After reset
0
15
bit symbol
PRI_1
After reset
0
7
bit symbol
PRI_0
After reset
0
24 23
PRI_3
PRI_2
PRI_7
PRI_6
-
PRI_10
-
PRI_14
PRI_19
-
PRI_23
PRI_22
PRI_27
PRI_26
PRI_31
PRI_30
PRI_35
PRI_34
PRI_39
PRI_38
PRI_43
PRI_42
PRI_47
PRI_46
PRI_51
PRI_50
-
PRI_54
PRI_59
PRI_58
-
-
PRI_67
PRI_66
PRI_71
PRI_70
PRI_75
PRI_74
-
-
30
29
28
-
0
0
0
22
21
20
-
0
0
0
14
13
12
-
0
0
0
6
5
4
-
0
0
0
Page 111
16 15
8 7
PRI_1
PRI_5
PRI_9
-
PRI_17
PRI_21
PRI_25
-
PRI_33
PRI_37
PRI_41
-
PRI_49
PRI_53
-
PRI_61
-
PRI_69
PRI_73
PRI_77
27
26
-
-
0
0
19
18
-
-
0
0
11
10
-
-
0
0
3
2
-
-
0
0
TMPM3V6/M3V4
0
PRI_0
PRI_4
PRI_8
-
-
PRI_20
PRI_24
-
PRI_32
PRI_36
PRI_40
PRI_44
PRI_48
PRI_52
PRI_56
PRI_60
-
PRI_68
PRI_72
PRI_76
25
24
-
-
0
0
17
16
-
-
0
0
9
8
-
-
0
0
1
0
-
-
0
0
2019-02-06
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