Ok I understand,but where is the 9th bit ?

When I send 1 Byte I have: 1 Start Bit,8 Data Bit,1 Stop Bit.
Where Is here the 9Th Bit? :-)

For example when I use Hyperterminal I can not adjust to 9th Bit I just have 7 or 8 Bit data.

Regard Pesti