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Toshiba T3100e - Page 108

Toshiba T3100e
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File
No.
960-010
9.
Serial
Port
This
option
allows
you
to
change
the
I/O
address
of
a
serial
port
is
automatically
established
according
to
its
interrupt
level,
the
SETUP
program
prompts
you
to
specify
only
the
interrupt
level.
The
I/O
address
of
a
serial
port
which
is
given
an
interrupt
level
of
5,
however,
must
be
set
to
one
of
the
two
pedetermined
I/O
addresses
as
shown
below.
The
relationship
between
the
serial
port
interrupt
levels
and
I/O
addresses
is
shown
below.
Interrupt
Level
3
4
5
I/O
Address
2F8H
3F8H
3E8H
or
338H
The
first
setup
item
in
the
serial
port
setup
menu
sets
the
I/O
address
for
the
serial
port
that
is
to
be
given
an
interrupt
level
of
5.
The
SETUP
program
displays
one
of
the
following
addresses
as
the
possible
I/O
address:
3E8H
338H
You
can
select
the
appropriate
ones
with
the
left
and
right
arrow
keys.
The
second
through
fourth
items
in
the
serial
port
setup
menu
set
the
interrupt
levels
of
the
serial
ports.
When
the
cursor
is
positioned
on
the
second
serial
port
setup
menu
item,
the
SETUP
program
displays
the
menu
shown
below.
From
this
menu,
you
can
select
the
interrupt
levels
to
be
assigned
to
the
serial
ports.
3-52

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