Figure 580. Master Full-Duplex Communication - ST STM32G4 Series Reference Manual

Advanced arm-based 32-bit mcus

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Serial peripheral interface / inter-IC sound (SPI/I2S)

DMA or software control at Rx events

Assumptions for master full-duplex communication example:

Data size > 8 bit

If DMA is used:

Number of Tx frames transacted by DMA is set to 3

Number of Rx frames transacted by DMA is set to 3

Figure 580. Master full-duplex communication

Enable Tx/Rx DMA or interrupts

: Communication diagrams on page 1709

DMA or software control at Tx events

for details about common assumptions

RM0440 Rev 1

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