SAM4L Datasheet, PDF (324/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

16.6.10 Mode Register
Name:
MR
Access Type:
Read/Write
Offset:
0x018 + n*0x040
Reset Value:
0x00000000
ATSAM4L4/L2
31
30
29
28
27
26
25
24
-
-
-
-
-
-
-
-
23
22
21
20
19
18
17
16
-
-
-
-
-
-
-
-
15
14
13
12
11
10
9
8
-
-
-
-
-
-
-
-
7
6
5
4
3
2
1
0
-
-
-
-
RING
ETRIG
SIZE
• RING: Ring Buffer
0:The Ring buffer functionality is disabled.
1:The Ring buffer functionality is enabled. When enabled, the reload registers, MARR and TCRR will not be cleared after reload.
• ETRIG: Event Trigger
0:Start transfer when the peripheral selected in Peripheral Select Register (PSR) requests a transfer.
1:Start transfer only when or after a peripheral event is received.
• SIZE: Size of Transfer
Table 16-4.
SIZE
0
1
2
3
Size of Transfer
Size of Transfer
Byte
Halfword
Word
Reserved
42023C–SAM–02/2013
324