<s>
Communication	O
between	O
devices	O
in	O
a	O
fibre	B-Architecture
channel	I-Architecture
network	O
uses	O
different	O
elements	O
of	O
Fibre	B-Architecture
Channel	I-Architecture
standards	O
.	O
</s>
<s>
All	O
Fibre	B-Architecture
Channel	I-Architecture
communication	O
is	O
done	O
in	O
units	O
of	O
four	O
10-bit	O
codes	B-Protocol
.	O
</s>
<s>
This	O
group	O
of	O
4	O
codes	B-Protocol
is	O
called	O
a	O
transmission	O
word	O
.	O
</s>
<s>
An	O
ordered	O
set	O
is	O
a	O
transmission	O
word	O
that	O
includes	O
some	O
combination	O
of	O
control	O
(	O
K	O
)	O
codes	B-Protocol
and	O
data	O
(	O
D	O
)	O
codes	B-Protocol
.	O
</s>
<s>
These	O
addresses	O
are	O
defined	O
by	O
an	O
8-bit	O
field	O
but	O
must	O
have	O
neutral	O
disparity	O
as	O
defined	O
in	O
the	O
8b/10b	B-Protocol
coding	I-Protocol
scheme	I-Protocol
.	O
</s>
<s>
In	O
addition	O
to	O
the	O
transfer	O
of	O
data	O
,	O
it	O
is	O
necessary	O
for	O
Fibre	B-Architecture
Channel	I-Architecture
communication	O
to	O
include	O
some	O
metadata	O
.	O
</s>
<s>
This	O
is	O
clearer	O
than	O
their	O
full	O
10-bit	O
(	O
Dxx.x	O
)	O
form	O
as	O
shown	O
in	O
the	O
Fibre	B-Architecture
Channel	I-Architecture
standards	O
:	O
</s>
<s>
Note	O
1	O
:	O
The	O
first	O
parameter	O
byte	B-Application
of	O
the	O
EOF	O
primitive	O
can	O
have	O
one	O
of	O
four	O
different	O
values	O
(	O
8A	O
,	O
95	O
,	O
AA	O
,	O
or	O
B5	O
)	O
.	O
</s>
<s>
The	O
remaining	O
two	O
parameter	O
bytes	B-Application
define	O
whether	O
the	O
frame	O
is	O
ending	O
normally	O
,	O
terminating	O
the	O
transfer	O
,	O
or	O
is	O
to	O
be	O
aborted	O
due	O
to	O
an	O
error	O
.	O
</s>
<s>
Note	O
3	O
:	O
The	O
SOF	O
primitive	O
contains	O
a	O
pair	O
of	O
control	O
bytes	B-Application
(	O
shown	O
as	O
cccc	O
in	O
the	O
table	O
)	O
to	O
designate	O
the	O
type	O
of	O
frame	O
.	O
</s>
<s>
The	O
Fibre	B-Architecture
Channel	I-Architecture
protocol	O
transmits	O
data	O
in	O
frames	O
each	O
of	O
which	O
can	O
contain	O
up	O
to	O
2112	O
bytes	B-Application
of	O
payload	O
data	O
.	O
</s>
