Manual

328
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
26.5.17 DMAC Channel x [x = 0..3] Control B Register
Name: DMAC_CTRLBx [x = 0..3]
Access: Read/Write
Reset Value: 0x00000000
•SIF
Source Interface Selection Field.
00: The source transfer is done via AHB-Lite Interface 0.
01: Reserved.
10: Reserved.
11: Reserved.
•DIF
Destination Interface Selection Field.
00: The destination transfer is done via AHB-Lite Interface 0.
01: Reserved.
10: Reserved.
11: Reserved.
•SRC_PIP
0: Picture-in-Picture mode is disabled. The source data area is contiguous.
1: Picture-in-Picture mode is enabled. When the source PIP counter reaches the programmable boundary, the address is
automatically increment of a user defined amount.
•DST_PIP
0: Picture-in-Picture mode is disabled. The Destination data area is contiguous.
1: Picture-in-Picture mode is enabled. When the Destination PIP counter reaches the programmable boundary the address
is automatically incremented by a user-defined amount.
•SRC_DSCR
0: Source address is updated when the descriptor is fetched from the memory.
1: Buffer Descriptor Fetch operation is disabled for the source.
31 30 29 28 27 26 25 24
AUTO – DST_INCR – – SRC_INCR
23 22 21 20 19 18 17 16
FC DST_DSCR – – – SRC_DSCR
15 14 13 12 11 10 9 8
–– DST_PIP–––SRC_PIP
76543210
–– DIF –– SIF