UART_RSA_MSR_FIFO
result = mode & UART_RSA_MSR_FIFO;
serial_out(up, UART_RSA_MSR, mode | UART_RSA_MSR_FIFO);
result = mode & UART_RSA_MSR_FIFO;
result = !(mode & UART_RSA_MSR_FIFO);
serial_out(up, UART_RSA_MSR, mode & ~UART_RSA_MSR_FIFO);
result = !(mode & UART_RSA_MSR_FIFO);
result = mode & UART_RSA_MSR_FIFO;
serial_out(up, UART_RSA_MSR, mode | UART_RSA_MSR_FIFO);
result = mode & UART_RSA_MSR_FIFO;
result = !(mode & UART_RSA_MSR_FIFO);
serial_out(up, UART_RSA_MSR, mode & ~UART_RSA_MSR_FIFO);
result = !(mode & UART_RSA_MSR_FIFO);