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
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
606
31.7.41 PIO Edge/Level Status Register
Name:
PIO_ELSR
Address:
0x400E0EC8 (PIOA), 0x400E10C8 (PIOB), 0x400E12C8 (PIOC)
Access:
Read-only
• P0-P31: Edge/Level Interrupt Source Selection
0: The interrupt source is an edge-detection event.
1: The interrupt source is a level-detection event.
1: The interrupt source is a level-detection event.
31.7.42 PIO Falling Edge/Low-Level Select Register
Name:
PIO_FELLSR
Address:
0x400E0ED0 (PIOA), 0x400E10D0 (PIOB), 0x400E12D0 (PIOC)
Access:
Write-only
• P0-P31: Falling Edge/Low-Level Interrupt Selection
0: No effect.
1: The interrupt source is set to a falling edge detection or low-level detection event, depending on PIO_ELSR.
1: The interrupt source is set to a falling edge detection or low-level detection event, depending on PIO_ELSR.
31
30
29
28
27
26
25
24
P31
P30
P29
P28
P27
P26
P25
P24
23
22
21
20
19
18
17
16
P23
P22
P21
P20
P19
P18
P17
P16
15
14
13
12
11
10
9
8
P15
P14
P13
P12
P11
P10
P9
P8
7
6
5
4
3
2
1
0
P7
P6
P5
P4
P3
P2
P1
P0
31
30
29
28
27
26
25
24
P31
P30
P29
P28
P27
P26
P25
P24
23
22
21
20
19
18
17
16
P23
P22
P21
P20
P19
P18
P17
P16
15
14
13
12
11
10
9
8
P15
P14
P13
P12
P11
P10
P9
P8
7
6
5
4
3
2
1
0
P7
P6
P5
P4
P3
P2
P1
P0