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S
UPER P4SGA/P4SGL/P4SGR/P4SGE User's Manual
Floppy Connector
The floppy connector is located
on JP5. See the table on the right
for pin definitions.
Pin Number
Function
1
GND
3
GND
5
Key
7
GND
9
GND
11
GND
13
GND
15
GND
17
GND
19
GND
21
GND
23
GND
25
GND
27
GND
29
GND
31
GND
33
GND
Pin Number
Function
2
FDHDIN
4
Reserved
6
FDEDIN
8
Index-
10
Motor Enable
12
Drive Select B-
14
Drive Select A-
16
Motor Enable
18
DIR-
20
STEP-
22
W rite Data-
24
W rite Gate-
26
Track 00-
28
W rite Protect-
30
Read Data-
32
Side 1 Select-
34
Diskette
Floppy Connector Pin Definitions (JP5)
Signal Names
+DB(12)
+DB(13)
+DB(14)
+DB(15)
+DB(P1)
+DB(0)
+DB(1)
+DB(2)
+DB(3)
+DB(4)
+DB(5)
+DB(6)
+DB(7)
+DB(P)
GROUND
DIFFSENS
TERMPW R
TERMPW R
RESERVED
GROUND
+ATN
GROUND
+BSY
+ACK
+RST
+MSG
+SEL
+C/D
+REQ
+I/O
+DB(8)
+DB(9)
+DB(10)
+DB(11)
Connector
Contact
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
Signal Names
-DB(12)
-DB(13)
-DB(14)
-DB(15)
-DB(P1)
-DB(0)
-DB(1)
-DB(2)
-DB(3)
-DB(4)
-DB(5)
-DB(6)
-DB(7)
-DB(P)
GROUND
GROUND
TERMPW R
TERMPW R
RESERVED
GROUND
-ATN
GROUND
-BSY
-ACK
-RST
-MSG
-SEL
-C/D
-REQ
-I/O
-DB(8)
-DB(9)
-DB(10)
-DB(11)
Connector
Contact
Number
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
68-pin Ultra160 SCSI Connectors (JA1, JA2, JA3)
Ultra160 SCSI
Connectors
(P4SGR)
Refer to the table on
the right for the pin defi-
nitions of the Ultra160
SCSI connectors lo-
cated at JA1, JA2 and
JA3.