ADLINK Technology CoreModule 740, Reference Manual

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Chapter 3 Hardware
CoreModule 740 Reference Manual 23
Utility 2 Interface
This section describes the Utility 2, J4 interface, which supports the features in the following bullets.
Table 3-5 provides a complete list of the Utility 2 connector pin signals.
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Floppy Drive Interface
•
IDE Interface
Floppy Drive Interface
The Super I/O chip (SCH3112I-NU) provides the floppy controller and supports one floppy drive.
IDE Interface
The ICH8-M I/O Hub (82801HBM) provides the IDE controller and supports two IDE drives.
Utility 2 Pin Signals
Table 3-5 lists the signals and their descriptions for the Utility 2 interface which provides a right-angle,
80-pin connector with 0.025" (0.635mm) pin pitch.
Table 3-5. Utility 2 Interface Pin Signals (J4)
Pin # Signal Description
1 GND8 Floppy Ground
2 HD_RST* Reset – Low active hardware reset
3 FDD_DEN Floppy Density Select
4 GND3 IDE Ground
5 GND9 Floppy Ground
6 IDE_PDD7 Primary Disk Data 7
7 NC Not Connected
8 IDE_PDD8 Primary Disk Data 8
9 GND10 Floppy Ground
10 IDE_PDD6 Primary Disk Data 6
11 FPY_KEY Not Connected
12 IDE_PDD9 Primary Disk Data 9
13 GND11 Floppy Ground
14 IDE_PDD5 Primary Disk Data 5
15 FDD_INDX* Floppy Index – Detects the drive head is positioned over the track 0
16 IDE_PDD10 Primary Disk Data 10
17 GND12 Floppy Ground
18 IDE_PDD4 Primary Disk Data 4
19 FDD_MTR0 Floppy Motor Control 0 – Selects drive motor 0
20 IDE_PDD11 Primary Disk Data 11
21 GND13 Floppy Ground
22 IDE_PDD3 Primary Disk Data 3
23 NC Not Connected
24 IDE_PDD12 Primary Disk Data 12
25 GND14 Floppy Ground