Datasheet

Table Of Contents
510
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
32.8.18 DMAC Channel x [x = 0..7] Configuration Register
Name: DMAC_CFGx [x = 0..7]
Addresses: 0xFFFFEC50 [0], 0xFFFFEC78 [1], 0xFFFFECA0 [2], 0xFFFFECC8 [3], 0xFFFFECF0 [4], 0xFFFFED18 [5],
0xFFFFED40 [6], 0xFFFFED68 [7]
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 514
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.
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.
SRC_PER_MSB: SRC_PER Most Significant Bits
This field indicates the Most Significant bits of the SRC_PER field.
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.
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.
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_PER_MSB DST_H2SEL DST_REP SRC_PER_MSB SRC_H2SEL SRC_REP
76543210
DST_PER SRC_PER