Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet

Product codes
ATSAM4S-WPIR-RD
Page of 1231
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
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12.8.3.1 Interrupt Set-enable Registers
Name:
NVIC_ISERx [x=0..7]
Access:
 Read
/Write
Reset:
 0x00
0000000
These registers enable interrupts and show which interrupts are enabled.
• SETENA: Interrupt Set-enable
Write:
0: No effect.
1: Enables the interrupt.
Read:
0: Interrupt disabled.
1: Interrupt enabled.
Notes: 1. If a pending interrupt is enabled, the NVIC activates the interrupt based on its priority. 
2. If an interrupt is not enabled, asserting its interrupt signal changes the interrupt state to pending, the NVIC never activates 
the interrupt, regardless of its priority.
31
30
29
28
27
26
25
24
SETENA
23
22
21
20
19
18
17
16
SETENA
15
14
13
12
11
10
9
8
SETENA
7
6
5
4
3
2
1
0
SETENA