SAM4L Datasheet, PDF (151/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

11.6.12 Input Output Retention Register
Name:
IORET
Access Type:
Read/Write
Offset:
0x0034
Reset Value:
0x00000000
ATSAM4L4/L2
31
30
29
28
27
26
25
-
-
-
-
-
-
-
23
22
21
20
19
18
17
-
-
-
-
-
-
-
15
14
13
12
11
10
9
-
-
-
-
-
-
-
7
6
5
4
3
2
1
-
-
-
-
-
-
-
• RET: Retention on I/O lines after waking up from the BACKUP mode
0: I/O lines are not held after waking up from the BACKUP mode.
1: I/O lines are held after waking up from the BACKUP mode, until RET is written to 0.
24
-
16
-
8
-
0
RET
42023C–SAM–02/2013
151