Chapter 5 Input/Output Interfaces
5-4
Compaq iPAQ Series of Desktop Personal Computers
Second Edition – February 2001
Diskette drive interface not connected.
5.2.3 SECONDARY IDE INTERFACE
The secondary IDE interface supports the Multibay device, which may be an optical storage device
(CD-ROM, DVD, LS-120) or a second hard drive mounted in a Multibay adapter that in turn is
installed in the Multibay. Both iPAQ 1.x and 2.0 systems provide a 68-pin female connector
(mounted on a Multibay board) that mates with the corresponding male connector of the Multibay
device or adapter.
Figure 5-2.
68-Pin Multibay Connector (on Multibay board).
Table 5–4. 68-Pin Multibay Connector Pinout
Table 5-4.
68-Pin Multibay Connector Pinout
Pin
Signal
Description
Pin
Signal
Description
1
RST-
Reset
2
GND
Ground
3
DD7
Drive Data Bit <7>
4
DD8
Drive Data Bit <8>
5
DD6
Drive Data Bit <6>
6
DD9
Drive Data Bit <9>
7
DD5
Drive Data Bit <5>
8
DD10
Drive Data Bit <10>
9
DD4
Drive Data Bit <4>
10
DD11
Drive Data Bit <11>
11
DD3
Drive Data Bit <3>
12
DD12
Drive Data Bit <12>
13
DD2
Drive Data Bit <2>
14
DD13
Drive Data Bit <13>
15
DD1
Drive Data Bit <1>
16
DD14
Drive Data Bit <14>
17
DD0
Drive Data Bit <0>
18
DD15
Drive Data Bit <15>
19
GND
Ground
20
(key)
No connection
21
DREQ
DMA request
22
GND
Ground
23
IOW
Drive I/O Write
24
GND
Ground
25
IOR
Drive I/O Read
26
GND
Ground
27
IORDY
I/O Channel Ready
28
CSEL
Cable select
29
DACK
DMA Acknowledge
30
GND
Ground
31
IRQ
Interrupt request
32
GND
Ground
33
DA1
Drive address bit <1>
34
PDIAG
Passed diagnostics
35
DA0
Drive address bit <0>
36
DA2
Drive address bit <2>
37
CS1
Chip select 1
38
CS3
Chip select 3
39
DASP-
Drive activity/drive 1 prsnt.
40
GND
Ground
41
Vcc
+5 VDC logic power
42
MTR PWR
+5 VDC motor power
43
GND
Ground
44
AUD L
Left audio
45
GND
Left audio ground
46
GND
Right audio ground
47
AUD R
Right audio
48
INDEX-
Index
49
Vcc
+5 VDC
50
DRVSEL
Drive select
51
DSKCHG
Disk change
52
GND
Ground
53
DEN ID
Media identification
54
MTR ON-
Motor On
55
LOWDEN-
Density select
56
DIR-
Direction in
57
STEP-
Step
58
DEV PRST
System device present
59
WDATA-
Write data
60
GND
Ground
61
WGATE-
Write gate
62
TRK0-
Track 00
63
GND
Ground
64
WPROT-
Write protect
65
GND
Ground
66
RDATA-
Read data
67
GND
Ground
68
HDSEL-
Head (side one) select
1
Содержание iPAQ 1.0
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