Technical Data
30
P5000HX(-M)-WMB Series Motherboard
Service Manual
Overview
The tables below list the pin signals for the peripheral headers and connectors. The
following illustration (
Figure 11
) indicates the pin positions for each.
Pin Signals
Parallel Port
Serial Ports 1 & 2
Pin
Description
Pin
Description
Pin
Description
1
- Strobe
10
- Acknowledge
1
Data Carrier Detect (In)
2
+ Data Bit 0
11
+ Busy
2
Data Set Ready (In)
3
+ Data Bit 1
12
+ Paper Feed
3
Receive Data (In)
4
+ Data Bit 2
13
+ Select
4
Request to Send (Out)
5
+ Data Bit 3
14
- Auto Feed
5
Transmit Data (Out)
6
+ Data Bit 4
15
- Error
6
Clear to Send (In)
7
+ Data Bit 5
16
- Initialize Printer
7
Data Terminal Ready (Out)
8
+ Data Bit 6
17
- Select Input
8
Ring Indicator (In)
9
+ Data Bit 7
18-26 Ground
9
Ground
10
Not Connected
Primary & Secondary EIDE
PS/2 Keyboard
Pin
Description
Pin
Description
Pin
Description
1
Reset (Out)
21
DMA Request (In)
1
Keyboard Data
3
+ Data 7 (I/O)
23
- I/O Write (Out)
2
Not Connected
4
+ Data 8 (I/O)
25
- I/O Read (Out)
3
Ground
5
+ Data 6 (I/O)
27
I/O Channel Ready (In)
4
+5 V
6
+ Data 9 (I/O)
28
+ ALE
5
Keyboard Clock
7
+ Data 5 (I/O)
29
DMA Acknowledge (Out)
6
Not Connected
8
+ Data 10 (I/O)
31
+ IRQ14 (In)
9
+ Data 4 (I/O)
32
I/O CS16 (In)
PS/2 Mouse
10
+ Data 11 (I/O)
33
+ ADDR1 (Out)
Pin
Description
11
+ Data 3 (I/O)
34
Passed Diagnostics
1
Mouse Data
12
+ Data 12 (I/O)
35
+ ADDR0 (Out)
2
Not Connected
13
+ Data 2 (I/O)
36
+ ADDR2 (Out)
3
Ground
14
+ Data 13 (I/O)
37
- CS0 (Out)
4
+5 V
15
+ Data 1 (I/O)
38
CS1 (Out)
5
Mouse Clock
16
+ Data 14 (I/O)
39
Activity Light (In)
6
Not Connected
17
+ Data 0 (I/O)
2,19,
22,24,
26,30,
40
Ground
18
+ Data 15 (I/O)
20
Not Connected
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