Atmel Evaluation Kit AT91SAM9X25-EK AT91SAM9X25-EK Data Sheet
Product codes
AT91SAM9X25-EK
524
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
31.7.18 DMAC Channel x [x = 0..7] Configuration Register
Name:
DMAC_CFGx [x = 0..7]
Address:
0xFFFFEC50 (0)[0], 0xFFFFEC78 (0)[1], 0xFFFFECA0 (0)[2], 0xFFFFECC8 (0)[3], 0xFFFFECF0 (0)[4],
0xFFFFED18 (0)[5], 0xFFFFED40 (0)[6], 0xFFFFED68 (0)[7], 0xFFFFEE50 (1)[0], 0xFFFFEE78 (1)[1], 0xFFFFEEA0 (1)[2],
0xFFFFEEC8 (1)[3], 0xFFFFEEF0 (1)[4], 0xFFFFEF18 (1)[5], 0xFFFFEF40 (1)[6], 0xFFFFEF68 (1)[7]
0xFFFFEEC8 (1)[3], 0xFFFFEEF0 (1)[4], 0xFFFFEF18 (1)[5], 0xFFFFEF40 (1)[6], 0xFFFFEF68 (1)[7]
Access:
Read-write
Reset:
0x0100000000
This register can only be written if the WPEN bit is cleared in
• 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_REP: Source Reloaded from Previous
0 (CONTIGUOUS_ADDR): When automatic mode is activated, source address is contiguous between two buffers.
1 (RELOAD_ADDR): When automatic mode is activated, the source address and the control register are reloaded from previous
transfer.
transfer.
• 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_REP: Destination Reloaded from Previous
0 (CONTIGUOUS_ADDR): When automatic mode is activated, destination address is contiguous between two buffers.
1 (RELOAD_ADDR): When automatic mode is activated, the destination and the control register are reloaded from the previous
transfer.
transfer.
• 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.
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
DST_REP
–
–
SRC_H2SEL
SRC_REP
7
6
5
4
3
2
1
0
DST_PER
SRC_PER