8259A
ICW'
ICW2
ICW3
(MASTER
DEVICE)
ICW31SLAVE
DEVICE)
1·
lew.
NEEOED
0
..
NO ICW4NEEDEO
1"
SINGLE
0'"'
NOT
SINGLE
CALL
ADDRESS
INTERVAL
1'" INTERVAL OF 4
O·
INTERVAL
OF
8
1 ..
LEVel
TRIGGERED INPUT
0'"
EDGE
TRIGGERED
INPUT
A7 - AS
OF
LOWER
ROUTINE
ADDRESS
(MC8-80/95
MODE
ONl
YI
UPPER
ROUTINE
ADDRESS
1
~
IR INPUT HAS A SLAVE
0"
IR INPUT DOES NOT HAVE
A
SLAVE
~
~ ~
~ ~
~
~
~
~
1,
j 0 I 0 I 0 I 0 I 0
lID,
liD,
lIDo
I
SLAVE
10111
o ,
2 3 • 5 • 7
· ,
. ,
. , . ,
•
•
,
,
..
, ,
• • •
o , ,
, ,
1
'"
MCS
86
MODE
0'"
MCS·80/85
MODE
1
~
AUTO £01
0'"
NORMAL
EOI
EH!j
X--'
-
NON
BUFFERED
MODE
1 0 -
BUFFERED
MODE/SLAVE
1
,....
BUFFERED
MODE/MASTER
NOTE
1:
SLAVED
10
IS EQUAL
TO
THE CORRESPONDING MASTER
IR
INPUT.
NOTE
2:
X INDICATED
"DON'T
CARE".
Initialization Command Word Format
9-45