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
402
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 (Active Low)
0: Bit DMAISR of CRCCU_DMA_ISR is set at the end of the current descriptor transfer.
1: Bit DMAISR of CRCCU_DMA_ISR remains cleared.
1: Bit DMAISR of CRCCU_DMA_ISR remains cleared.
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
0
BYTE
The data size is 8-bit
1
HALFWORD
The data size is 16-bit
2
WORD
The data size is 32-bit