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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
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SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
578
31.7.1 PIO Enable Register
Name:
PIO_PER
Address:
0x400E0E00 (PIOA), 0x400E1000 (PIOB), 0x400E1200 (PIOC)
Access:
Write-only 
This register can only be written if the WPEN bit is cleared in 
.
• P0-P31: PIO Enable
0: No effect.
1: Enables the PIO to control the corresponding pin (disables peripheral control of the pin).
31.7.2 PIO Disable Register
Name:
PIO_PDR
Address:
0x400E0E04 (PIOA), 0x400E1004 (PIOB), 0x400E1204 (PIOC)
Access:
Write-only 
This register can only be written if the WPEN bit is cleared in 
.
• P0-P31: PIO Disable
0: No effect.
1: Disables the PIO from controlling the corresponding pin (enables peripheral control of the pin). 
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