ST07A, ST08A Hard Disk/Floppy Controller Settings and Configuration
SEAGATE TECHNOLOGY, INC.
ST07A, ST08A
Data bus: 16-bit, ISA
Size: Half-length, full-height card
Hard drives supported: Two IDE (AT) Interface drives
Floppy drives supported: ST07A: None
ST08A: Two 360KB, 720KB, 1.2MB, or 1.44MB
CONNECTIONS | |
Function | Location |
40-pin AT Interface (IDE) control cable connector-internal | J1 |
34-pin data cable connector-floppy drive (ST08A only) | J2 |
4-pin connector-drive active LED | J3 |
5-pin connector-DC power | J4 |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
| » | Port addresses are 1F0-1F7, 3F6-3F7 3F0-3F5, 3F7h | JP2 | open |
Port addresses are 170-177,376-377 370-375, 377h | JP2 | closed | |
| » | Floppy drive disabled | JP4 | open |
Floppy drive enabled | JP4 | closed | |
| » | IRQ14 is connected directly to the host | JP5 | pins 2 & 3 closed |
IRQ14 to the host is cleared when the drive goes BUSY | JP5 | pins 1 & 2 closed | |
| » | I/O channel READY from hard drive is not connected to host | JP6 | open |
I/O channel READY from the hard drive is connected to host | JP6 | closed | |
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