4-2
Universal Command Converter
Motorola
Host Interface Card Bus Signal Description
B25
IRQ3
PC Interrupt request 3,(COM2),
B26–B31
No Connect
Table 4-2. Sun 4 SPARC (SBus) Connector
Pin #
Description
Pin #
Description
Pin #
Description
1
GND
33
PA(06)
65
D(18)
2
BR
34
PA(08)
66
D(20)
3
SEL
35
PA(10)
67
D(22)
4
INTREQ1
36
ACK0
68
GND
5
D(00)
37
PA(12)
69
D(24)
6
D(02)
38
PA(14)
70
D(26)
7
D(04)
39
PA(16)
71
D(28)
8
INTREQ2
40
ACK1
72
+5V
9
D(06)
41
PA(18)
73
D(30)
10
D(08)
42
PA(20)
74
SIZ(1)
11
D(10)
43
PA(22)
75
RD
12
INTREQ(3)
44
ACK2
76
GND
13
D(12)
45
PA(24)
77
PA(01
14
D(14)
46
PA(26)
78
PA(03)
15
D(16)
47
DTAPAR
79
PA(05)
16
INTREQ4
48
-12V
80
+5V
17
D(19)
49
CLK
81
PA(07)
18
D(21)
50
BG
82
PA(09)
19
D(23)
51
AS
83
PA(11)
20
INTREQ5
52
GND
84
GND
21
D(25)
53
D(01)
85
PA(13)
22
D(27)
54
D(03)
86
PA(15)
23
D(29)
55
D(05)
87
PA(17)
24
INTREQ6
56
+5V
88
+5V
25
D(31)
57
D(07)
89
PA(19)
26
SIZ(0)
58
D(09)
90
PA(21)
27
SIZ(2)
59
D(11)
91
PA(23)
28
INTREQ7
60
GND
92
GND
29
PA(00)
61
D(13)
93
PA(25)
30
PA(02)
62
D(15)
94
PA(27)
31
PA(04)
63
D(17)
95
RESET
32
LERR
64
+5V
96
+12V
Table 4-1. PC Interface Card J2 (ISA-16 Bus) Connector (Continued)
Pin #
Mnemonic
Signal Name and Description