Lenovo PC 300PL Techical Information Manual - Page 38

IDE connectors, of 2. ISA connector pin assignments

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Appendix A. Connector pin assignments Figure 20 (Page 2 of 2). ISA connector pin assignments Pin Signal I/O Pin B25 IRQ3 I A25 B26 DACK2# O A26 B27 TC O A27 B28 BALE O A28 B29 +5 V dc NA A29 B30 OSC O A30 B31 Ground NA A31 D1 MEMCS16# I C1 D2 IOCS16# I C2 D3 IRQ10 I C3 D4 IRQ11 I C4 D5 IRQ12 I C5 D6 IRQ15 I C6 D7 IRQ14 I C7 D8 DACK0# O C8 D9 DRQ0 I C9 D10 DACK5# O C10 D11 DRQ5 I C11 D12 DACK6# O C12 D13 DRQ6 I C13 D14 DACK7# O C14 D15 DRQ7 I C15 D16 +5 V DC NA C16 D17 MASTER# I C17 D18 Ground NA C18 IDE connectors 2 1 Figure 21 (Page 1 of 2). IDE connector pin assignments Pin Signal I/O Pin 1 RESET 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 30 Technical Information Manual Signal I/O SA6 I/O SA5 I/O SA4 I/O SA3 I/O SA2 I/O SA1 I/O SA0 I/O SBHE# I/O LA23 I/O LA22 I/O LA21 I/O LA20 I/O LA19 I/O LA18 I/O LA17 I/O MEMR# I/O MEMW# I/O SD8 I/O SD9 I/O SD10 I/O SD11 I/O SD12 I/O SD13 I/O SD14 I/O SD15 I/O 40 39 Signal I/O NC NA Ground NA I/O write O NC NA I/O read O Ground NA I/O channel ready I ALE O

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Appendix A.
Connector pin assignments
IDE connectors
1
2
40
39
Figure 20 (Page 2 of 2). ISA connector pin assignments
Pin
Signal
I/O
Pin
Signal
I/O
B25
IRQ3
I
A25
SA6
I/O
B26
DACK2#
O
A26
SA5
I/O
B27
TC
O
A27
SA4
I/O
B28
BALE
O
A28
SA3
I/O
B29
+5 V dc
NA
A29
SA2
I/O
B30
OSC
O
A30
SA1
I/O
B31
Ground
NA
A31
SA0
I/O
D1
MEMCS16#
I
C1
SBHE#
I/O
D2
IOCS16#
I
C2
LA23
I/O
D3
IRQ10
I
C3
LA22
I/O
D4
IRQ11
I
C4
LA21
I/O
D5
IRQ12
I
C5
LA20
I/O
D6
IRQ15
I
C6
LA19
I/O
D7
IRQ14
I
C7
LA18
I/O
D8
DACK0#
O
C8
LA17
I/O
D9
DRQ0
I
C9
MEMR#
I/O
D10
DACK5#
O
C10
MEMW#
I/O
D11
DRQ5
I
C11
SD8
I/O
D12
DACK6#
O
C12
SD9
I/O
D13
DRQ6
I
C13
SD10
I/O
D14
DACK7#
O
C14
SD11
I/O
D15
DRQ7
I
C15
SD12
I/O
D16
+5 V DC
NA
C16
SD13
I/O
D17
MASTER#
I
C17
SD14
I/O
D18
Ground
NA
C18
SD15
I/O
Figure 21 (Page 1 of 2). IDE connector pin assignments
Pin
Signal
I/O
Pin
Signal
I/O
1
RESET
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
NC
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
30
Technical Information Manual