Does the UART-CTS input signal (when activated) have the ability to block/unblock UART-Tx DMA traffic automatically (without processor intervention)?
If not, then what extra controls are required to make this happen?
Check the UART MODEM register for the part type that you are using.
The control bit TXCTSE enables CTS control of the transmitter, which also pauses DMA transmission.
Retrieving data ...