I.
10
~
~
~
~
Select Code
23
Select Code
24
Select Code
26
Select Code
3<
Figure 10-2. GPIO Interface Card Select Code Settings
4. Make a note
that
the
select code has been used
and
is no longer available.
5.
Find
the
new select code's
number
in
the
set
of
select code labels supplied
with
the
interface. Replace
the
card's select code label with this new label.
If
a
number
is
not
available, make a label
that
looks like
the
one removed
and
stick
it
on
the
GPIO
card.
Setting the Interrupt Level. Set
Interrupt
Level switch, labeled U39 on
the
card,
to
interrupt
level 3 (00) as shown
in
Table 10-2
(interrupt
level 3 is required for
HP-UX).
If
your application requires a different setting, refer
to
Table 10-2.
Table 10-2.
Interrupt
Switch Switch
Level
1
0
3
0 0
4
0
1
5
1
0
6
1 1
Setting the Data-in Clock Source Clock Switches.
The
Data-in
Clock Source
switches
are
labeled U2.
If
you are connecting
an
HP
9884A
Paper
Tape
Punch
to
this interface, set these switches as shown
in
Figure 10-I.
The
right-hand
3 switches set
the
clock source for
the
data
input
lines
DIO
through
DI7.
The
left-hand 3 switches set
the
clock source for
the
data
input
lines DI8 through
DII5.
Select only one clock source (logic 0) for each group of
input
lines. The
three
clock sources are:
10-6 Configuring Popular Accessory Cards
To Next Page
Loading...
