Peripheral Scatter-Gather, Setup And Configuration - Texas Instruments Concerto F28M36 Series Technical Reference Manual

Functional Description
Figure 16-5. Peripheral Scatter-Gather, Setup and Configuration
1
Source Buffer
in Memory
4 WORDS(SRCA)
A
16 WORDS(SRCB)
B
1 WORD(SRCC)
C
Peripheral Data
Register
DEST
NOTES:
1. Application has a need to copy data items from three separate locations in memory into a peripheral data
register.
2. Application sets up
µDMA copy"tasks."
3. Application sets up the channel primary control structure to copy each task configuration , one at a time, to the
alternate control structure, where it is executed by the DMA controller. .
1198
M3 Micro Direct Memory Access ( µDMA)
2
Task List in Memory
SRC
DST
ITEMS=4
Unused
SRC
DST
ITEMS=16
Unused
SRC
DST
ITEMS=1
Unused
MA "tasklist" in memory , which contains the pointers and control configuration for three
µD
Copyright © 2012–2019, Texas Instruments Incorporated
Channel Control
Table in Memory
"TASK" A
"TASK" B
"TASK" C
µ
SPRUHE8E – October 2012 – Revised November 2019
www.ti.com
3
SRC
Channel Primary
DST
Control Structure
ITEMS=12
SRC
Channel Alternate
DST
Control Structure
ITEMS=n
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