|
LM3S3748 Datasheet, PDF (201/753 Pages) List of Unclassifed Manufacturers – Microcontroller | |||
|
◁ |
LM3S3748 Microcontroller
Figure 9-6. Peripheral Scatter-Gather, μDMA Copy Sequence
Task List
in Memory
uDMA Control Table
in Memory
TASK A
TASK B
TASK C
SRC
DST
PRI
COPIED
SRC
ALT
DST
Buffers
in Memory
SRC A
SRC B
SRC C
Peripheral
Data
Register
COPIED
Using the channelâs primary control structure, the uDMA
controller copies task A configuration to the channelâs
alternate control structure.
Then, using the channelâs alternate control structure, the
uDMA controller copies data from the source buffer A to
the peripheral data register.
Task List
in Memory
TASK A
TASK B
TASK C
uDMA Control Table
in Memory
SRC
DST
PRI
COPIED
SRC
ALT
DST
Buffers
in Memory
SRC A
SRC B
SRC C
Peripheral
Data
Register
COPIED
Using the channelâs primary control structure, the uDMA
controller copies task B configuration to the channelâs
alternate control structure.
Then, using the channelâs alternate control structure, the
uDMA controller copies data from the source buffer B to
the peripheral data register.
Task List
in Memory
uDMA Control Table
in Memory
TASK A
TASK B
TASK C
SRC
DST
PRI
COPIED
SRC
ALT
DST
Buffers
in Memory
SRC A
SRC B
SRC C
Peripheral
Data
Register
COPIED
Using the channelâs primary control structure, the uDMA
controller copies task C configuration to the channelâs
alternate control structure.
Then, using the channelâs alternate control structure, the
uDMA controller copies data from the source buffer C to
the peripheral data register.
April 08, 2008
201
Preliminary
|
▷ |