Arduino Serial - use start bit

Question

My arduino uno should communicate with a serial port with the following configuration:

Baudrate = 9600
1 start bit
7 data bits
1 parity bit (even)
1 stop bit

Now I don't know how to configure it using Serial.begin so it will use the start bit. Without the start bit I would use Serial.begin(9600, SERIAL_7E1).

Answer 1

1 start bit is the default for Serial.begin() as well as the underlying USART, and cannot be changed at all.