BUS
CONTROL
80386
DATA
BUS
BHE
.-
74F373
AO
-
LE
liE
...L
ALE~
-:-
MUL TIBUS® I
AND
80386
LEAB
OEAB CEAB
OEBA CEBA
,
74F544
°15-°8
A B
-
/
LEBA
~
__
LEAB
OEABCEAB
OEBACEBA
....
)
A
74F544
B
I'
lEBA
~
LEAB
F.
OEAB CEAB
OEBA CEBA
°7-
0
0
) A
74F544
B
46
LEBA
~
[D
74ALS580
OC
C
Figure 9-10. Byte-Swapping Logic
9.6
iLBX™
BUS EXPANSION
Sl
<
DATF-DAT8
...
:::
MULTIBUS
<
'4
~
K
'=
DAT7-DATO
'4
BUS
CONTROL
_ MULTIBUS®
BHEN
_ MULTIBUS®
ADRO
G30107
The iLBX (Local Bus Expansion)
is
a high-performance bus interface standard
that
permits
the modular expansion of an 80386-based system. An iLBX interface links the 80386 system
board with additional boards containing memory,
I/O
subsystems, and other peripheral
devices or bus masters. Any board that conforms to the iLBX standard can be added to the
system
as
the user's needs dictate. For a 16-MHz 80386-based system, a typical iLBX access
cycle requires six wait states.
9-18
To Next Page
Loading...
