Atmel SAM4S Xplained Pro Starter Kit Atmel ATSAM4S-XSTK ATSAM4S-XSTK Data Sheet
Product codes
ATSAM4S-XSTK
353
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
23.6.2 Transfer Control Register
Name: TR_CTRL
Access: Read-write
Reset: 0x00000000
• BTSIZE: Buffer Transfer Size
• TRWIDTH: Transfer Width Register
• IEN: Context Done Interrupt Enable
When set to zero, the transfer done status bit is set at the end of the transfer.
31
30
29
28
27
26
25
24
–
–
–
–
IEN
–
TRWIDTH
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
BTSIZE
7
6
5
4
3
2
1
0
BTSIZE
Value
Name
Description
00
BYTE
The data size is 8-bit
01
HALFWORD
The data size is 16-bit
10
WORD
The data size is 32-bit