To configure the CPDMA for transmit operations the host must do the following:
- Initialize the TX_HDP registers to 0.
- Enable the desired transmit interrupts in the CPDMA_TX_INTMASK_SET register.
- Write the thost_buffer_offset register value.
- Setup the transmit channel(s) buffer descriptors in host memory as defined in CPPI 3.0.
- Enable the CPDMA controller by setting the thost_en bit in the CPDMA_TX_CONTROL register.