Memory Size - Pro-Log 7706 User Manual

Installation
and
Specifications
I
RAM
0
I I
RAM
4
(
0000
I
P
2000
RAM
1
0800
RAM
5
2800
y
RAM
2
1000
RAM
6
3000
L
RAM
3
I
I
RAM
7
f
1800
|
P 3800
r
W4
\°$
I
RAM
0
P
4000
I
RAM
4
P
6000
I
RAM
1
P
4800
I
RAM
5
f
6800
I
RAM
2
P 5000
!
RAM
6
? 7000
L
RAM
3
f
5800
L
RAM
7
f
7800
7FFF
OPTION
0
OPTION
1
W4
I
RAM
0
P
8000
I
RAM
4
p
AOOO
I
RAM
1
P
8600
I
RAM
5
P
A60O
I
RAM
2
P
9000
I
RAM
a
[BOM)
I
RAM
3
(
9800
I
RAM
7
r
Baoo
BFFF
W4
;:
:
;|
I
RAM
0
?
COOO
I
RAM
4
P
E0O0
I
RAM
1
P
C600
I
RAM
5
f
E800
I
RAM
2
P
DOOO
L
RAM
6
P
FOOO
I
RAM
3
P
D800
L
RAM
7
P
F800
FFFF
OPTION
2
2
4
OPTION
3
(AS
SHIPPED)
fill.
JUMPER
INSTALLED
-
NO
JUMPER
INSTALLED
INDICATES
PIN
1
Figure 2-7.
7706
Memory
Mapping
Options
Tailoring
Memory
Size
The 7706 comes
in
four versions,
2, 4, 8,
and
16K.
Its
size
can
be
tailored
in
2K
increments
by
disabling
any unused
memory
parts.
For example,
a
12K
card can be
configured
by
using
a
16K
card
and
disabling
two
of
the
RAMs.
When
a
RAM
is
disabled, the
memory
space
that
it
had occupied
becomes
available toother cards
in
the system.
Any number
and
combination
of
RAMs
can be
disabled.
Disabling
is
performed by
cutting
one
or
more
jumpers
in
jumper
block
Wl
.
Figure 2 8
shows
the location
ot
Wl
and
indicates
which jumper
affects
each
RAM.
Be
sure
to
cut the
jumper
in
two places
to
prevent
it
from
reshorting. This
leature
can
also
add
to
the
memory mapping
flexibility.
Refer
to
the
"Memory
Addressing"
section.
The
address
of
each
socket
is
shown
in
Figure
2-7.
2-6