Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Raspberry Pi/RP2350/SPI0/SSPDMACR#0x0
DMA control register, SSPDMACR on page 3-12
Receive DMA Enable. If this bit is set to 1, DMA for the receive FIFO is enabled.
Transmit DMA Enable. If this bit is set to 1, DMA for the transmit FIFO is enabled.
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