Texas Instruments OMAP5912 Reference Manual page 717

Table 52. Channel Source Destination Parameters Register (DMA_CSDP)
Base Address = 0xFFFE D800, Offset Address = 0x00 + n*0x40
Bit Name
15:14 DST_BURST_EN
13 DST_PACK
12:9 DST
8:7 SRC_BURST_EN
6 SRC_PACK
5:2 SRC
1:0 DATA_TYPE
Table 53. Data Types
SPRU755B
Function
Destination burst enable
Destination packing
Transfer destination
Source burst enable
Source packing
Transfer source
Defines the type of the data moved in the channel
(see Table 53)
Data_type
00
01
10
11
Start_Address must be aligned on the boundary of the type of data moved. For
example, if data_type is s32, the source and destination start address must be
aligned on a word32. If data_type is s8, source and destination start_address
can have any value. Otherwise, the DMA is forced to transfer a different type
of data to the PORT because of the unaligned start address value, which can
cause undefined effects.
It is the software's responsibility to make sure that start address is aligned with
channel data type.
Type
s8: 8 bits scalar
s16: 16 bits scalar
s32: 32 bits scalar
Illegal (cause
undefined effects)
Direct Memory Access (DMA) Support
System DMA
R/W Reset
R/W 00
R/W 0
R/W 0000
R/W 00
R/W 0
R/W 0000
R/W 00
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