Oracle Exadata Storage Server X7-2 EF Service Manual page 241

Setup Options
Bits per Second
Data Bits
Parity
Stop Bits
Flow Control
Options
9600
19200
38400
57600
115200
7/8
None/Even/Odd/Mark/Space
1/2
None, Hardware RTS/CTS,
Software Xon/Xoff
Defaults
9600
8
None
1
None
BIOS Setup Utility Menu Options
BIOS Advanced Menu Selections
Description
■ VT-UTF8: Uses UTF8
encoding to map Unicode
characters onto one or more
bytes.
■ ANSI: Extended ASCII
character set.
Select the serial port
transmission speed. The
speed must be matched on the
connecting serial device. Long
or noisy lines require lower
speeds.
Select the data bits.
A parity bit can be sent with
the data bits to detect some
transmission errors.
■ None: No parity bits are
sent.
■ Even: Parity bit is 0 if the
number of 1s in the data bits
is even.
■ Odd: Parity bit is 0 if the
number of 1s in the data bits
is odd.
■ Mark: Parity bit is always 1.
■ Space: Parity bit is always 0.
Mark and Space parity do not
allow for error detection. They
can be used as an additional data
bit.
Stop bits indicate the end of
a serial data packet. (A start
bit indicates the beginning
of a serial data packet.) The
standard setting is 1 stop bit.
Communication with slow
devices may require more than 1
stop bit.
Flow control can prevent data
loss from buffer overflow. When
sending data, if the receiving
buffers are full, a 'stop' signal
can be sent to stop the data flow.
Once the buffers are empty, a
'start' signal can be sent to restart
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