LM3S3749 Luminary Micro, Inc, LM3S3749 Datasheet - Page 214

• Manufacturer Part Number: LM3S3749
• Description: Lm3s3749 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

Micro Direct Memory Access (μDMA)
214
Bit/Field
27:26
25:24
23:18
SRCSIZE
reserved
SRCINC
Name
Type
R/W
R/W
R/W
Reset
-
-
-
Preliminary
Description
Source Address Increment
Sets the bits to control the source address increment.
The address increment value must be equal or greater than the value
of the source size (SRCSIZE).
Source Data Size
Sets the source item data size.
Note:
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
Value
0x0
0x1
0x2
0x3
Value
0x0
0x1
0x2
0x3
Description
Byte
Increment by 8-bit locations.
Half-word
Increment by 16-bit locations.
Word
Increment by 32-bit locations.
No increment
Address remains set to the value of the Source Address End
Pointer (DMASRCENDP) for the channel.
Description
Byte
8-bit data size.
Half-word
16-bit data size.
Word
32-bit data size.
Reserved
You must set DSTSIZE to be the same as SRCSIZE.
June 02, 2008