Filter
Top Products
SYSTEM OPERATION
FIGURE 3-1A SINGLE
CHIP
8355/8755A
A"
_______
----1
~
vee----~CE
10/~-------__I10/M
FIGURE
3-1
B MULTIPL
ECHIPS
8156
A13
101M
Vee-
I---
'-----
CE
101M
8355/8755A
EE
CE
101M
8355/8755A
EE
CE
101M
#1
I-
#0
FIGURE 3-1C FULLY DECODED
AND
EXPANDED
8205
A'3
A,2
A2
07
I
A,
A'l
Ao
I--
MEMORY
ADDRESS
{
I X X X X I 0 A,o- -
1-
- I -
1/0
PORT
IX
X X X
lox
A,
Aol
MEMORY
ADDRESS
rX
x>
'I X X X X
I"·
. .
I·
1/0
PORT
IX
X 1 1 1 X
A2
A,
Aol
MEMORY ADDRESS
{
IX
X 0 1 1 X A,o- - 1 - - - - 1 -
1/0
PORT
IX
X 0 1 I X X
A,
Aol
MEMORY ADDRESS
t X ° ° 1
XA,,·
. 1 . . 1
1/0
PORT
IX
X 0 0 I X X
A,
Aol
8155
CE
101M
Aol
MEMORY
ADDRESS
A'4
A'5
101M
A,3
A,2
A11
A'5
A'4
101M
~
A
2
-----tAl
------lAo
vee
E3
----<lI
E
2
----<lIE,
8205
0
7
E3
E2
I
E,
00
8355/8755A
EE
CE
.------1
101M
8355/8755A
0
0
P-+-----I
EE
Vee
CE
#7
101M
I
8155
CE
~
101M
~
to
, ,
'I'
X X X I., . . 1 .
1/0
PORT
I
I
/~
#0 / 10
MEMORY
ADDRESS
olooloXXXI~-
-1-
MEMORY ADDRESS
ilo
PORT
fO",'A'11
I MEMORY ADDRESS
/
11~~IO~O~O~O~I~O~A=l~~~-~I-~~~-~I------~Ao~1
1/0
PORT
FIGURE 3·1D SEPARATE
CHIP
ENABLES FOR
1/0
AND
MEMORY
~
% QUAD
2TO
1 MUX
CE-IO
I,
8156
OUT
CE
10
101M
Ao
I
1
CE-MEM
101M
FIGURE
3·1
MCS·85™ PERIPHERALS WITH
110
MAPPED
110
3-3