Atmel Xplained Pro Evaluation Kit ATSAM4E-XPRO ATSAM4E-XPRO Data Sheet
Product codes
ATSAM4E-XPRO
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
504
26.8.18 DMAC Channel x [x = 0..3] Configuration Register
Name:
DMAC_CFGx [x = 0..3]
Address:
0x400C0050 [0], 0x400C0078 [1], 0x400C00A0 [2], 0x400C00C8 [3]
Access:
Read-write
Reset:
0x0100000000
This register can only be written if the WPEN bit is cleared in “DMAC Write Protect Mode Register” on page 506
SRC_PER: Source with Peripheral identifier
Channel x Source Request is associated with peripheral identifier coded SRC_PER handshaking interface.
DST_PER: Destination with Peripheral identifier
Channel x Destination Request is associated with peripheral identifier coded DST_PER handshaking interface.
SRC_H2SEL: Software or Hardware Selection for the Source
0 (SW): Software handshaking interface is used to trigger a transfer request.
1 (HW): Hardware handshaking interface is used to trigger a transfer request.
DST_H2SEL: Software or Hardware Selection for the Destination
0 (SW): Software handshaking interface is used to trigger a transfer request.
1 (HW): Hardware handshaking interface is used to trigger a transfer request.
SOD: Stop On Done
0 (DISABLE): STOP ON DONE disabled, the descriptor fetch operation ignores DONE Field of CTRLA register.
1 (ENABLE): STOP ON DONE activated, the DMAC module is automatically disabled if DONE FIELD is set to 1.
LOCK_IF: Interface Lock
0 (DISABLE): Interface Lock capability is disabled
1 (ENABLE): Interface Lock capability is enabled
LOCK_B: Bus Lock
0 (DISABLE): AHB Bus Locking capability is disabled.
1(ENABLE): AHB Bus Locking capability is enabled.
31
30
29
28
27
26
25
24
–
–
FIFOCFG
–
AHB_PROT
23
22
21
20
19
18
17
16
–
LOCK_IF_L
LOCK_B
LOCK_IF
–
–
–
SOD
15
14
13
12
11
10
9
8
–
–
DST_H2SEL
–
–
–
SRC_H2SEL
–
7
6
5
4
3
2
1
0
DST_PER
SRC_PER