HP 8642A Operating Manual page 363

Synthesized signal generator
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P/0 A3 MICROPROCESSOR/MEMORY MODULE 1 0 8 6 4 2 - 6 0 1 2 4 )
r
5 MHz CLOCKl
MICROPROCESSOR
| 4 ( L U >
PROCESSOR
INTERRUPT
r©4
CLK
+5VIF1)
CIS
JT
U12
15
20
19
+5V(F1)
R46 i
10k f
13
" ^ 1 4
i:
—J
1 —
+ 5V(F1)
45
$
MIRC0PR0CESS0R
6B000
CLK
E
VMA
11
* BR
J
BG
+5V (Fl)
R50
10K
12
4 Gjc>
CONTROLLER
RESET
I
|4,6,Ga>
IPLO
) IPLl
^1 IPL2
25
24
23
IS
17,
22
FCO
2B
V.
FC1
27
FC2
26
DO
Dl
D2
D3
D4
D5
D6
D7
OB
D9
D10
Dll
□ 12
D13
D14
D15
R/W
LOS
UDS
AS
VPA
DTACK
-XC4
64
63
62
61
60
59
5B
57
56
55
54
BGACK
IPL 0
IPL 1
IPL 2
RESET
HALT
8ERR
FCO
FC1
FC2
Al
A2
A3
A4
A5
A6
A7
AB
A3
A10
A H
A12
A13
A14
A15
A16
A17
A1B
A19
A20
A21
A22
A23
V
21
10
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
50
51
52
6.53
POWER SUPPLY
*ND GND
I 4 (TJ>
POWER SUPPLY AND QND
+5V(F1)
SERIAL PREFIX: 2427*
<
MA
™A
A
□ 4
°LA
06 A
D7
□a
DS
DJO
Dll
*¥-A
D13
014
D15
Al
A2
A3
A4
N
A5
A6
A7
AB
A9
AID
All
A12
A13
A14
A15
A16
A17
A1B
A19
A20
A21
A22
A23
16
PHOC STATUS
BUS GRANT
-®6

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