HP 8112A Operating, Programming And Servicing Manual page 358

50 mhz programmable pulse generator
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FROM
ADDRESS BUS
U30
M A I N D E C O D E R
C 1 7
+SV
6
A
2
L
1
AL3 2
L
2
A ! S 3
U 1 2
4
VMA
1 2
B-24 Backdating
3. Figure B-5 shows the change to Figure 1 0.7-5 for enabling five
individual ROMS.
R O M l
S000-SFFF
7
L
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A0
8
6
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4
2
Al
"'
3
...
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4
s
A
3
8
32
TO
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AS
I S
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U l 3/4
7
2
U 1 4/4
64
AS
3
ISi
1
TO
A
2
22
AS
A l 0
L S
A l !
1 8
F
U38
0
13
ROMI
2
G
ROM
I I
AG
AG
T P I
AG
AG
AG
AG
AG
AG
R O M 4
S000-SFFF
1
7
2
"'
8
A0
2
s
"'
4
A l
3
s
A
A
3
8
L S
A4
4
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S
ISi
ISi
S4
32
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AS
1
2
A
A7
23
AS
A9
9
22
A 1 0
1
A l l
1 8
F
U7
+SV
ROM4
20
G
ROM
TP4
AG
AG
AG
AG
AG
AG
AG
AG
Figure B-5. 08 1 1 6-66533: ROM schematic
R O M 2
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64
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AS
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AS
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A l l
U9
F
s
0
s
G
ROM
1
0 1
0
02
TP2
1 1
AG
AG
0
1 1
3
AG
1 4
04
03
13
AG
1
1 4
1 6
OS
0 6
1 6
S
AG
l S
l
07
17
AG
AG
AG
1 7
ROM2
R O M S
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1
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e
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3
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A
23
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AS
1 9
22
AS
A l 0
A l l
1 8
r
U6
9
0
9
ROM
1
0
TPS
D I
1 1
AG
1 0
0
1 3
0 3
1 3
1 1
02
AG
AG
1 4
04
1 4
AG
O
AG
OS
S
S
l S
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l
07
1 7
S
l
lS
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AG
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ROMS
R O M 3
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3
4
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2
64
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AS
23
AB
22
A 1 0
l S
A l l
L S
F
UB
G
00
ROM
0 1
1 0
0
TP3
AG
1 3
03
2
AG
1 1
1 4
0 4
AG
AG
0 6
1 6
l S
OS
AG
07
07
AG
A G
1 7
AG
ROM 3
R O M 6
B000-BFFF
l
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1
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8
r
6
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4
2
A
7
1
3
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4
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S
l
S4
32
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A
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AS
ISi
A7
23
AS
1 9
22
AS
A 1 0
A l l
1 8
r
us
G
9
0
ROM
1
0
0
0 1
1 1
0
AG
TPS
0
02
03
13
03
02
AG
04
4
04
AG
1
AG
OS
lS
S
OS
AG
l
07
07
OS
OS
AG
AG
1 7
AG
ROMS
00
0 1
02
04
03
06
OS
0
1

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