The transfer of bytes to the memory area defined in the operand RXDU takes more time in a cycle. There is no flag indicating the end of this transfer.
To monitor that the transfer has taken place you should monitor with a comparison to zero. This way the flag should be shown well before the end of the execution of the RXDU.
To monitor that the transfer has taken place you should monitor with a comparison to zero. This way the flag should be shown well before the end of the execution of the RXDU.
