Specifications
Multi
Slave
Product
Reference
Manual
Section
2
SLAVE BASE ADDRESS SELECTIOW
Each
Multi
Slave
CPU
occupies
:four
o£
the
r.aeterls
I/O
though
only
three
are
actually
used
by
each
CPU.
Base
selection
o:f
the
Multi
Slave
board
is
as
£ollc;ovs:
ports,
address
t=J~-
E'l.~
(7)(6)(5)(4)
1
3 5
7
a
0
0
0
MSB
a 0 a a
I
I
I
2
4
6
8
LSB
AddreSB
selection
Ufas
LOW
TRUE
LOGIC
Cno
Jumper=l,
Jumpcled=O)
and
repre-
sents
the
four
~oBL
signi£icant
bita
of
the
base
address.
Figure
2-3
Hulti
Slav.
Baaa
Add~Od~
Selection
Example:
BASE
ADDRESS
JUMPERS
------------
- "
_._---
'JOH
1··2
80H
3-4,
5-6,
7-8
90H
3·
4,
5-6
AOH
8'''4,
7-8
BOH
3
··4
COH
~~~
"0,.
7-8
DOH
::.~
(:
-.J
IE,
£or
example,
the
base
addresR
waR
BOIl,
Lhe
three
CPUs
would
be
addressed
as
£ollowa:
CPU
#0
BOH
CPU
#1
84H
CPU
#2
88H
The
master
<5-100)
data
BASE ADDRESS
TYPE
+0
R/W
+1
R/W
+2
R/W
uses
80H,
81H.
on:::;
,"
:2H
~83H
not
used)
;
uses
84H,
85H,
nn(,j
B6H
<87H
not
used)
;
usee
BAH,
B9H,
8.na
f.~AH
cBSH
not
used)
port
assignments
ere
r.11.,
i
0110'..,.5:
FUNCTION
Read
Sl~ve
St~tus
i~ee
d~tails
below)
Write
Control
bits
5-100
Datt!
Port.
Read
=
De-assert
ALIVE-
bit
Write=
De-sesert
SLAVE MESSAGE
bit
Table
2-1
Haater
5-100
Port
AaaigJ1M\snta
SLAVE BASE ADDRESS SELECTION
Page
2·-
3