S8000 Functional Block Diagram - ZiLOG System 8000 User Manual

Zeus operating system manual
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USER
Zilog
USER
UP TO 3 ADDITIONAL DRIVES
/
~
I
I I
I I I
,--------,
,...--------,
.... '--------.., I
,... ..... -------....,
I
r.L..-------,
I I
,...'--------....., I I
I
I
I I I
.
I
I I
ADDITIONAL
II
ADDITIONAL
8 SERIAL
PARALLEL
DISK
ILJ
TAPE
I
L
I
8 SERIAL
PARALLEL
1/0
PORTS
PORT
DRIVE(S)
LJ
DRIVE(S)
LJ
~
I/O PORTS
PORT
J
J
...t.
,..
.J!
;:..
...t.
,..
...t.
r--
...t.
,...
...t.
,...
DISK DRIVE
TAPE DRIVE
I/O BUS
1/0
BUS
INTERFACE
INTERFACE
11
...t.
::..
'(40·PIN FLAT
(50·PIN FLAT
RIBBON CABLE)
RIBBON CABLE)
~
-..:
7-
-..:
7-
7"-
SECONDARY
WINCHESTER
CARTRIDGE
SERIAL
CPU
DISK
TAPE
BOARD
CONTROLLER
CONTROLLER
J:
;::..
...:; ;::..
...t.
i'"
7"-
"'<
7"-
-..:
7"-
2
Z·BUS BACKPLANE INTERCONNECT (ZBI)
"1
...t.
,...
,--------.,
,... ..... - - - - - - - . , I
r ...... -------.,
I I UP TO 5 ADDITIONAL
~
[ .... - - - - - - - , I I
I
256K OR 1 MEGABYTE
,
- - - - - - - . , I
I
I
I
MEMORY BOARDS
I
I I I I
I
I.
I
I.J
ECC MEMORY
ECC MEMORY
I
I
i-J
I i-~
CONTROLLER
256K BYTE
i-J
J
...t.
1
f""
32·BIT ECC MEMORY BUS
~ ~ ~
;:
~
Figure 2-1.
S8000 Functional Block Diagram
10
Zilog
10

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