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APPLICATION EXAMPLES
ADDRESS
LINE
USAGE
RECOMMENDED
DEVICE
ADDRESSING
DEVICE
PART A14-A19 A13 A12
A11
A10
A9 A8 A7-AO
MEMORY
16
I/O
16
8755A-2
E3
X X X 1
D D
D
D
F800-FFFF
F800-F803
8755A-2
E2
X 1 X 0
D D D D
FOOO-F7FF
FOOO-F003
8185-2
E6
X
0 X
X 1 D D D
1400-17FF
-
E5'(J2
short)
X
0
1 X 0 D
D
D
1000-13FF
-
8185-2
E5'(J2
open)
X 0 X
X
0 D D D 0000-03FF
-
8155-2
E1
X X 0
X X X X D
OOOO-OOFF
0000-0005
LEGEND:
X=NOT
USED;
O=CHIP SELECT ON
0;
1=CHIP
SELECT ON 1 :
D=FULL
Y DECODED ADDRESS
'J2
short
'J2
open
FFFF
I
F800
EFFF
•
1800
13FF
t
1000
03FF
t
0100
DOFF
r
0000
MEMORY
I/O
FFFF
8755A-2
(E3)
EPROM
•
F804
NOT
USED
F803
8755A-2
(E2)
EPROM
F7FF
t
F7FF
FOOD
•
8755A-2
(E3)
NOT
USED
t
F800
F004
NOTUSED
F003
8185-2
(E6) RAM
17FF
t
EFFF
1400
•
8755A-2
(E2)
NOT
USED
t
FOOD
8185-2 RAM
(E5)&J2
SHORTED
NOTUSED
0006
OFFF
•
8155-2
(E1)
0005
i
0000
0400
03FF
NOT
USED
8155-2
(E5)& J2
8155-2
OPEN
(E1)
RAM
RAM
0000
Figure 4-1.
iAPX
88
Demo Board Address Map
4-4