Texas Instruments SimpleLink CC2620 Technical Reference Manual page 1046

Functional Description
Figure 12-2 shows an example operation in ping-pong mode.
Primary structure
Alternate structure
Primary structure
Alternate structure
1046
Micro Direct Memory Access (µDMA)
Figure 12-2. Example of Ping-pong μDMA Transaction
µDMA controller
SOURCE
Transfers using BUFFER A
DEST
CONTROL
Unused
SOURCE
Transfers using BUFFER B
DEST
CONTROL
Unused
SOURCE
Transfers using BUFFER A
DEST
CONTROL
Unused
SOURCE
Transfers using BUFFER B
DEST
CONTROL
Unused
Copyright © 2015, Texas Instruments Incorporated
Cortex-M3 processor
BUFFER A
BUFFER B
x Process data in BUFFER A
x Reload primary structure
BUFFER A
x Process data in BUFFER B
x Reload alternate structure
BUFFER B
x Process data in BUFFER A
x Reload alternate structure
SWCU117C – February 2015 – Revised September 2015
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