Lenovo PC 300PL Technical Information Manual 6275, 6285 - Page 70

IDE Connectors, Diskette Drive Connector, IDE Connector Pin Assignments

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Appendix A. Connector Pin Assignments IDE Connectors 2 40 1 Note: The IDE connectors are on the riser card. Figure 33. IDE Connector Pin Assignments Pin Signal I/O Pin 1 NC O 21 2 Ground NA 22 3 Data bus bit 7 I/O 23 4 Data bus bit 8 I/O 24 5 Data bus bit 6 I/O 25 6 Data bus bit 9 I/O 26 7 Data bus bit 5 I/O 27 8 Data bus bit 10 I/O 28 9 Data bus bit 4 I/O 29 10 Data bus bit 11 I/O 30 11 Data bus bit 3 I/O 31 12 Data bus bit 12 I/O 32 13 Data bus bit 2 I/O 33 14 Data bus bit 13 I/O 34 15 Data bus bit 1 I/O 35 16 Data bus bit 14 I/O 36 17 Data bus bit 0 I/O 37 18 Data bus bit 15 I/O 38 19 Ground NA 39 20 Key (Reserved) NA 40 39 Signal I/O NC NA Ground NA I/O write O Ground NA I/O read O Ground NA I/O channel ready I ALE O NC NA Ground NA IRQ I CS16# I SA1 O PDIAG# I SA0 O SA2 O CS0# O CS1 O Active# I Ground NA Diskette Drive Connector Note: The diskette drive connector is on the riser card. Figure 34 (Page 1 of 2). Diskette Drive Connector Pin Assignments Pin Signal I/O Pin Signal I/O 1 Drive 2 installed # I 2 High density select O 3 Not connected NA 4 Not connected NA 5 Ground NA 6 Data rate 0 NA 7 Ground NA 8 Index# I 9 Reserved NA 10 Motor enable 0# O 11 Ground NA 12 Drive select 1# O 13 Ground NA 14 Drive select 0# O 58 Technical Information Manual

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Appendix A.
Connector Pin Assignments
IDE Connectors
1
2
40
39
Note:
The IDE connectors are on the riser card.
Diskette Drive Connector
Note:
The diskette drive connector is on the riser card.
Figure 33. IDE Connector Pin Assignments
Pin
Signal
I/O
Pin
Signal
I/O
1
NC
O
21
NC
NA
2
Ground
NA
22
Ground
NA
3
Data bus bit 7
I/O
23
I/O write
O
4
Data bus bit 8
I/O
24
Ground
NA
5
Data bus bit 6
I/O
25
I/O read
O
6
Data bus bit 9
I/O
26
Ground
NA
7
Data bus bit 5
I/O
27
I/O channel ready
I
8
Data bus bit 10
I/O
28
ALE
O
9
Data bus bit 4
I/O
29
NC
NA
10
Data bus bit 11
I/O
30
Ground
NA
11
Data bus bit 3
I/O
31
IRQ
I
12
Data bus bit 12
I/O
32
CS16#
I
13
Data bus bit 2
I/O
33
SA1
O
14
Data bus bit 13
I/O
34
PDIAG#
I
15
Data bus bit 1
I/O
35
SA0
O
16
Data bus bit 14
I/O
36
SA2
O
17
Data bus bit 0
I/O
37
CS0#
O
18
Data bus bit 15
I/O
38
CS1
O
19
Ground
NA
39
Active#
I
20
Key (Reserved)
NA
40
Ground
NA
Figure 34 (Page 1 of 2). Diskette Drive Connector Pin Assignments
Pin
Signal
I/O
Pin
Signal
I/O
1
Drive 2 installed #
I
2
High density select
O
3
Not connected
NA
4
Not connected
NA
5
Ground
NA
6
Data rate 0
NA
7
Ground
NA
8
Index#
I
9
Reserved
NA
10
Motor enable 0#
O
11
Ground
NA
12
Drive select 1#
O
13
Ground
NA
14
Drive select 0#
O
58
Technical Information Manual