89-11Computers
89.4.4 Input/Output
e EISA bus provides 768 additional I/O locations for each slot in addition to the 768 ISA I/O locations that
ma
y
be ac
cessed
fr
om
an
y
sl
ot
. EI
SA
ca
rds
co
ntain
no
nvolatile
me
mory
to st
ore
co
nguration
in
formation
(s
ee
la
ter),
an
d
a mi
nimum
of 340 by
tes
of th
e
I/O ad
dress
sp
ace
of ea
ch
sl
ot
is re
served
fo
r
th
is
pu
rpose
.
89.4.5 System Conguration
e EISA system provides support for automatic system conguration to replace the use of jumpers and
di
p
sw
itches
to sp
ecify
pa
rameters
su
ch
as th
e
ba
se
me
mory
ad
dress,
in
terrupt
re
quest
li
ne
nu
mber,
or
DM
A
ch
annel
nu
mber
us
ed
by ea
ch
ad
d-on
ca
rd
. In
formation
on th
e
pr
oduct
ty
pe
an
d
ma
nufacturer
ar
e
sto
red
on ea
ch
EI
SA
ad
d-on
ca
rd
is re
ad
by th
e
CP
U
du
ring
sy
stem