System Interface Board
Human Interfaces
The
system interface
board
is designed
to
meet most, if not all of
the
computer's
human
interface
needs in a single system slot.
It
integrates RS-232, HP-IB, Audio, HP-HIL,
Battery
backed real
time clock, LAN, DMA,
and
an
optional high-speed disc HP-IB interface.
To maintain software compatibility,
the
designs
of
other
interface
cards
are used. These
cards
are
the
HP
98625B, 98643, 98620B,
and
the
original DIO size Series 300
human
interface card.
Each of these four sections
of
the
board
operates independently.
The
LAN portion of
the
system interface
board
is
software compatible with
the
current
Series
200/300 DIO
card
(HP 98643A). Because of space constraints on
the
backplate,
the
ThinLAN
implementation of
the
LAN was chosen.
The
MAD is built into
the
card
and, with
the
BNC
"T" connector, connects directly
to
the
thin
coax.
DMA
is
implemented on
the
system
board
with a new semi-custom CMOS
standard
cell.
The
chip is features
an
HP
proprietary 1.5 micron CMOS process
and
is a compatible superset of
the
HP
98620B DMA interface card.
High-Speed Disc Add-On
An optional high-speed disc add-on is identical
to
the
HP
98625B.
It
allows HP-IB word-wide
transfers during DMA cycles
and
is fully
supported
by software. Because
of
limited space,
the
high speed disc is implemented on an add-on
board
and
is connected similar
to
the
RAM add-on
boards.
This
configuration does not require any additional DIO
or
DIO-II slots.
A special
HP-IB cable is used with this add-on
and
connects directly
to
the
edge of
the
add-on
board
using a special connector.
Monitor Compatibility
Both models
support
the
current
Series 300 video
boards
and
display systems.
• 512 by 400 monochrome
and
4 plane color.
• 1024 by 768 monochrome
and
6 plane color.
•
HP
98720 1280 by 1024 Solid Rendering Display System.
•
HP
98720H 1024 by 768 Graphics Display Station.
• Series 200 Display Compatibility
Card
Set.
Functional Description
59
To Next Page
Loading...
Need help?
General
