Hardware
CPU
- MC68020
Both
models
are
an
extension
of
the
Series 300 family.
Through
use
of
the
MC68020
at
16
MHZ
(Model
330)
and
25
MHz (Model 350), high-end performance
of
the
Series 300 family
is
almost
doubled
and
provides
state-of-the-art
technology.
Bus
Architecture
A 16-bit
I/O
bus
provides interfacing
to
most Series 200
and
300 accessory cards.
This
bus
is
called
the
DIO bus.
To increase speed, a new 32-bit
I/O
bus
is used in
this
computer
for even higher performance.
This
bus
is called
the
DIO-II
bus
and
provides 6
Mbyte/sec
transfer
rates, handling even
the
highest-performance peripherals independently
of
processor access
to
main memory.
It
is com-
patible
with
the
16-bit DIO
bus
of
the
Series 200
and
the
Model 310
and
320 computers, allowing
access
to
most accessory
and
interface
cards
available for those systems.
Model
350 memory
boards
are
accessed by a
third,
very-high speed :32-bit system bus. Con-
necting between
the
processor
board
and
RAM boards, it allows faster read
and
write
cycles
than
the
I/O
busses would
permit.
Figure
1-8 is a
diagram
of
the
I/O
architecture
for
the
Model 330
and
350 computers.
16 bit
Built-in
I/O:
LAN.
HI
SPD
HP-IB.
32 bit
PROCESSOR
32 bit
HP-HIL.
RS-232C.
CACHE
HP-IB.
AUDIO
MMU
16/32
bit
(/)
Built-in
DMA
:::::>
m
T
0
16 bit
010
INTERFACES
C
32
bit
RAM
32 bit
010
II
INTERFACES
16 bit
VIDEO
BOARDS
AND
or
32
bit
GRAPHICS
INTERFACES
Figure
1-3. Model 330/350
Computer
I/O
Architecture
Product
Information 5
To Next Page
Loading...
Need help?
General
