Name: Texas Instruments TM4C1294NCPDT
Brand: Texas Instruments
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Figure 9-4. Memory Scatter-Gather, μDMA Copy Sequence

SRC

DST

COPIED

SRC

DST

COPIED

PRI

ALT

SRC

DST

COPIED

SRC

DST

COPIED

SRC

DST

COPIED

SRC

DST

COPIED

Task List

in Memory

µDMA Control Table

in Memory

Buffers

in Memory

TASK B

TASK C

PRI

ALT

SRC B

SRC C

DEST B

DEST C

Using the channel’s primary control structure, the µDMA

controller copies task A configuration to the channel’s

alternate control structure.

Then, using the channel’s alternate control structure, the

µDMA controller copies data from the source buffer A to

the destination buffer.

Task List

in Memory

µDMA Control Table

in Memory

Buffers

in Memory

Using the channel’s primary control structure, the µDMA

controller copies task B configuration to the channel’s

alternate control structure.

Then, using the channel’s alternate control structure, the

µDMA controller copies data from the source buffer B to

the destination buffer.

µDMA Control Table

in Memory

Buffers

in Memory

Using the channel’s primary control structure, the µDMA

controller copies task C configuration to the channel’s

alternate control structure.

Then, using the channel’s alternate control structure, the

µDMA controller copies data from the source buffer C to

the destination buffer.

PRI

ALT

Task List

in Memory

TASK A

TASK B

TASK A

TASK C

SRC A

SRC C

DEST A

DEST C

SRC A

SRC B

DEST A

DEST B

TASK A

TASK B

SRC A

TASK C

SRC C

DEST C

SRC B

DEST B

DEST A

689June 18, 2014

Texas Instruments-Production Data

Tiva

™

TM4C1294NCPDT Microcontroller

Brand	Texas Instruments
Model	TM4C1294NCPDT
Category	Microcontrollers
Language	English

Texas Instruments TM4C1294NCPDT User Manual

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