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Page A - 12
ID 34424, Rev. 3.0
CP307-HDD
CP307
CUSTOMER SPECIFIC
P R E L I M I N A R Y
A.6.5
IDE Interface (PATA)
The IDE interface on the CP307-HDD module is comprised of the connector J3 and the
CompactFlash socket. The J3 connector is used to connect external devices to the CP307-
HDD module.
J3 is a standard 40-pin 2.54mm pinrow connector. Up to two devices (which must be master/
slave pairs) may be attached to the CP307-HDD board.
A wide range of IDE devices may be connected to the CP307-HDD module at J3 using a ribbon
cable. The following table describes the pinout of connector J3.
* Signal terminated with 10 k
Ω
pull-down resistor
Note ...
Only one external IDE slave device may be connected to the IDE connector J3
if a CompactFlash card is installed. This is due to the fact that an installed
CompactFlash card is always configured as IDE master.
Note ...
ATA-66 and ATA-100 are faster timings and require a specialized cable which
has additional grounding wires to reduce reflections, noise, and inductive
coupling. Please contact Kontron for further information.
Table A-5: Pinout of IDE Connector J3
I/O
DESCRIPTION
SIGNAL
PIN
PIN
SIGNAL
DESCRIPTION
I/O
O
Reset HD
IDERESET
1
2
GND
Ground signal
--
I/O
HD data 7
HD7
3
4
HD8
HD data 8
I/O
I/O
HD data 6
HD6
5
6
HD9
HD data 9
I/O
I/O
HD data 5
HD5
7
8
HD10
HD data 10
I/O
I/O
HD data 4
HD4
9
10
HD11
HD data 11
I/O
I/O
HD data 3
HD3
11
12
HD12
HD data 12
I/O
I/O
HD data 2
HD2
13
14
HD13
HD data 13
I/O
I/O
HD data 1
HD1
15
16
HD14
HD data 14
I/O
I/O
HD data 0
HD0
17
18
HD15
HD data 15
I/O
--
Ground signal
GND
19
20
NC
KEY
--
I
DMA request
IDEDRQ
21
22
GND
Ground signal
--
O
I/O write
IOW
23
24
GND
Ground signal
--
O
I/O read
IOR
25
26
GND
Ground signal
--
I
I/O channel ready IOCHRDY
27
28
CSEL
Cable select
I/O
O
DMA Ack
IDEDACKA
29
30
GND
Ground signal
--
I
Interrupt request
IDEIRQ
31
32
IOCS16
Obsolete
I/O
O
Address 1
A1
33
34
PDIAG#/ CBLID#* Detect ATA100
I
O
Address 0
A0
35
36
A2
Address 2
O
O
HD select 0
HCS0
37
38
HCS1
HD select 1
O
I
LED driving
LED
39
40
GND
Ground signal
--
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