Texas Instruments CC3235 SimpleLink Series - Ping-Pong Mode

SOURCE
DEST
CONTROL
Unused
transfers using BUFFER A
BUFFER A
Process data in BUFFER A
Reload primary structure
SOURCE
DEST
CONTROL
Unused
transfers using BUFFER B
BUFFER B
SOURCE
DEST
CONTROL
Unused
transfers using BUFFER A
BUFFER A
transfer continues using alternate
Process data in BUFFER B
Reload alternate structure
transfer continues using primary
transfer continues using alternate
SOURCE
DEST
CONTROL
Unused
Process data in BUFFER B
Reload alternate structure
Primary Structure
Alternate Structure
Primary Structure
Alternate Structure
BUFFER B
Time
µDMA Controller Cortex Processor
transfers using BUFFER B
Peripheral
/
µDMA Interrupt
Peripheral
/
µDMA Interrupt
Peripheral
/µDMA Interrupt
www.ti.com Functional Description
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SWRU543–January 2019
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Direct Memory Access (DMA)
Figure 4-1. Ping-Pong Mode