HP 330 Service Information Manual page 145

The Boot ROM chooses the input devices in the manner shown in Figure 4-4.
Is there a
yes
~~
Enable
cOde1
remote card?
the one with the lowest select
no
-
,
"
Is there an yes
:~
Enable console
I
internal HP-HIL
it as
keyboard/HP-IB?
no
,Ir
Is there yes an
~{
Enable
cOdel
external HP-HIL
the one with the lowest select
keyboard?
no
,~
If there was no
remote card.
then there is
no input device
SC)
set up dummy
drivers.
Figure 4-4. Boot ROM Input Device Selection Flow Chart
Boot ROM Functions
129