rtd cpuModule CME37786HX, User Manual

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CME37786HX RTD Embedded Technologies, Inc.
38
EIDE Connector, CN9
The EIDE connector is a 44-pin, 0.1 inch connector that can connect to a variety of EIDE or IDE
devices. The connector provides all signals and power needed to use a 2.5" form factor (laptop) hard
drive. Also, the first 40 pins of the connector provide all of the signals needed to interface to a 3.5"or
5" form factor hard drive, CD-ROM drive, or other EIDE device. The larger form factors use a 40-
pin, 0.1 inch spacing connector, so an adapter cable or adapter board is needed.
In order to use faster than UDMA Mode 2 (Ultra ATA/33), an 80 conductor cable is required. The
BIOS automatically detects the presence of an 80 conductor cable. To connect to an 80 conductor
cable to CN12, and adapter board is required.
Table 18: EIDE Connector CN9
Pin Signal
1 RESET-
2 Ground
3 DD7
4 DD8
5 DD6
6 DD9
7 DD5
8 DD10
9 DD4
10 DD11
11 DD3
12 DD12
13 DD2
14 DD13
15 DD1
16 DD14
17 DD0
18 DD15
19 Ground
20 N.C.)
21 DMARQ
22 Ground
23 DIOW-:STOP
24 Ground
25 DIOR-:HDMARDY-:HSTROBE
26 Ground
27 IORDY:DDMARDY-:DSTROB
28 CSEL
29 DMACK-
30 Ground
31 INTRQ
32 N.C
33 DA1
34 PDIAGDA0
35 N.C
36 DA2