Compaq iPAQ Internet Device Manual De Usuario
Chapter 5 Input/Output Interfaces
5-4 Compaq iPAQ Family of Internet Devices
First Edition – March 2000
The system board includes a 50-pin connector for the secondary IDE drive that is installed in the
MultiBay mounting position on the left side of the chassis. This interface includes power and
audio signals. The 50-pin system/daughter board connector is illustrated below followed by the
pinout.
MultiBay mounting position on the left side of the chassis. This interface includes power and
audio signals. The 50-pin system/daughter board connector is illustrated below followed by the
pinout.
Figure 5-2.
50-Pin Secondary IDE Connector (on system and daughter boards).
Table 5–4
. 50-Pin Secondary IDE Connector Pinout
Table 5-4.
50-Pin Secondary IDE Connector Pinout
Pin
Signal
Description
Pin
Signal
Description
1
AUD L
Left channel audio
2
AUD R
Right channel audio
3
AUD RTN
Audio return
4
AUD RTN
Audio return
5
NC
Not connected
6
MBAY
Multibay device sense
7
RST
Reset
8
GND
Ground
9
D7
Data Bit <7>
10
D8
Data Bit <8>
11
D6
Data Bit <6>
12
D9
Data Bit <9>
13
D5
Data Bit <5>
14
D10
Data Bit <10>
15
D4
Data Bit <4>
16
D11
Data Bit <11>
17
D3
Data Bit <3>
18
D12
Data Bit <12>
19
D2
Data Bit <2>
20
D13
Data Bit <13>
21
D1
Data Bit <1>
22
D14
Data Bit <14>
23
D0
Data Bit <0>
24
D15
Data Bit <15>
25
GND
Ground
26
--
(Key Space)
27
DDRQ1
Data request
28
GND
Ground
29
I/O W-
I/O write
30
GND
Ground
31
I/O R-
I/O read
32
GND
Ground
33
I/OCHRDY
I/O channel ready
34
P_ALE
Cable select
35
ACK1-
Acknowledge
36
GND
Ground
37
IRQ15
Interrupt request 15
38
IO16
16-bit I/O transfer
39
AD1
Address bit <1>
40
PDIAG
Diagnostic
41
AD0
Address bit <0>
42
AD2
Address bit <2>
43
CS1
Chip select <1>
44
CS3
Chip select <3>
45
ACT-
Activity
46
GND
Ground
47
Vcc
+5 VDC
48
Vcc
+5 VDC logic power
49
GND
Ground
50
NC
Not connected
5.3
DISKETTE DRIVE INTERFACE
NOTE:
The Compaq iPAQ does not support a diskette drive. However, the LPC47B277
I/O controller contains a diskette drive controller that may need to be enabled (with
Setup) to satisfy the requirements of some operating systems. This will result in device
manager applications indicating the presence of a diskette drive that in fact is not
available.
Setup) to satisfy the requirements of some operating systems. This will result in device
manager applications indicating the presence of a diskette drive that in fact is not
available.
P1
P49
P50
P2