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MODEL 12
GSI, INC.
MODEL 12
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Card Type
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Floppy drive/Tape controller
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Chip Set
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Unidentified
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Maximum Onboard Memory
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None
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I/O Options
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Floppy drive interface (2)
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Data Bus
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8-bit ISA
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Floppy drives supported
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Four 360KB, 720KB, 1.2MB, 1.44MB or 2.88MB drives
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CONNECTIONS
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Function
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Label
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Function
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Label
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2.88 Mb floppy/tape drive interface
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J2
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Floppy drive interface
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J3
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BIOS ADDRESS SELECTION
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Address
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J4
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C800h - C9FFh
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Pins 5 &6, 9 & 10 closed
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CC00h - CDFFh
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Pins 5 & 6, 11 & 12 closed
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D000h - 1DFFh
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Pins 7 & 8, 9 & 10 closed
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E000h - E1FFh
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Pins 7 & 8, 11 & 12 closed
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FLOPPY DRIVE CONFIGURATION
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Setting
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J4
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Primary
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Pins 1 & 2 closed
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| »
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Secondary
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Pins 3 & 4 closed
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INTERRUPT SELECTION
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IRQ
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J6
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3
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Pins 1 & 2 closed
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5
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Pins 3 & 4 closed
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6
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Pins 5 & 6 closed
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DMA CHANNEL SELECTION
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Channel
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J5
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1
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Pins 1 & 2 closed
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2
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Pins 3 & 4 closed
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3
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Pins 5 & 6 closed
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