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. 48
* reserved fo r chassis ground
* * reserved fo r memory unprotect
* * * reserved fo r memory protect
* * * * reserved fo r protect status
IM5AI 8080 BUS SIGNAL LIST
1
+8v
2
+16v
3
XRDY
V I 0
4
5
V I I
6
V I 2
7
V I 3
8
V I 4
V I 5
9
V I 6
10
V I 7
11
12
1?
14
15
16
17
18
M A I Ub UMSL
il'tÖ b Ü L
13
* *
20
21
SS
22
AUU K USUL
2i
U U USUL
24
P2
25
P I
26
PHLDA
21
PWAIT
28
TE
p in
29
A 5
30
A 4
31
A 3
32
A 15
33
A 12
34
A 9
35
DO 1
36
DOP
37
A 10
38
DO 4
39
DO 5
40
DO 6
41
D I2
42
Dl 3
43
Dl 7
44
SMI
45
SOUT
46
SINP
SMEMR
47
SHLTA
49
T T O C T T I
50
GND
51
52
5?
54
55
56
57
5«
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
15
76
77
78
79
T T
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
F
99
m h i
100
+8v
-16v
SSW DSU
EX T CLR
*
MW RITE
* * *
RUN
PRDY
t w t
L
p h o
u
T U LS L1--------------------
PSYNC
PWR
PD81N
A P
A 1
A 2
A 6
A 7
A 8
A 13
A 14
A l l
DO 2
DO 3
DO 7
D l 4
D l 5
D l 6
D l 1
D IO
S IN T A
SWO
SSTACK
T O C
GND
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