The
Human
Interface
Several devices may
act
as
the
"console",
or
primary
human
interface for
the
Boot
ROM. These
devices
permit
input
and
output
functions between
the
person
and
the
computer
system. Possible
console devices are:
Output
Devices
Functional
output
devices are listed below.
•
HP
98642 (4-port, multiplexed RS-2:32)
card
with
the
remote
bit
set (with a
supported
HP
terminal).
Supported
HP
terminals are defined as
those
terminals
supported
by
HP
on
HP-UX
for
the
Series
~~OO
computers. See
the
section
of
this
chapter
describing Remote
Human
Interface
for
Boot
ROM requirements.
•
HP
98626
card
with
the
remote
bit
set (with a
supported
HP
terminal).
•
HP
98644
card
with
the
remote
bit
set (with a
supported
HP
terminal).
•
Human
Interface
Card
(98561-66530)
or
Processor
board
RS-232 controller (same as 98644
card)
with
the
remote
bit
set (with a
supported
HP
terminal).!
•
A bit
mapped
video
board
at
internal address 56000016.
This
includes
the
HP
98700
and
all
of
the
processor
boards
with
video circuits.
The
Boot
RO~1
tries
to
talk
to
devices
with
a
primary
DIO ID of
25
and
a secondary DIO
ID of
1,
and
it
expects these devices
to
have ID
/FONT
ROM information.
• An
HP
98.546
Compatibility Display Interface.
This
alpha/graphics
video
card
set is
similar
to
the
HP
98204B card. Note
that
the
Boot
ROM
will
turn
off video
to
this
card
set
just
before
booting
an
OS.
It
is
up
to
the
operating
system
to
restore video if
this
card
set
is
to
be
used.
•
HP
98f>27
Color
Card
Input
Devices
Functional
input
devices are listed below.
•
Remote
HP
98642
card
with
supported
HP
terminal.
•
Remote
HP
98626
card
with
supported
HP
terminal.
•
Remote
HP
98644
card
with
supported
HP
terminal.
•
Human
Interface
Card
(98561-66530)
or
processor
board
RS-232 controller (same as 98644
card)
with
the
remote
bit
set (with a
supported
HP
terminal).!
• Processor
board
HP-HIL, keyboard,
and
HP-IB electronics.
•
I/O
slot HP-HIL
or
keyboard electronics.
The
only version of
this
hardware
is
the
key-
board
electronics in
the
HP
98700 Display Controller.
1
Only
one
output
device
at
a
time
will
be
used as
the
console
output
device, however,
the
Boot
ROM
will initialize
and
clear
any
bit-mapped
video
circuits
on
the
processor
board
and
on
video
cards
in
the
accessory
slots
that
it
finds, even if
that
video
circuit
is
not
chosen as
the
output
to
the
console device.
Boot
Rom Functions 77
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