Floppy drive interface – ADLINK LittleBoard 735 User Manual

Page 30

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Chapter 3

Hardware

24

Reference Manual

LittleBoard 735

Floppy Drive Interface

The SCH3114I-NU (U15) chip provides the floppy controller and supports one floppy drive. The floppy

signals are provided through a standard 34-pin header (J17). The floppy controller will support a 360k,

720k, 1.2M, 1.44M, or 2.88M drive.

The floppy drive header provides 34 pins, 2 rows, odd/even sequence (1, 2) with 0.100" (2.54mm) pitch.

0093-009F

System reserved

00A0-00A1

Slave Interrupt Controller

00A2-00BF

System reserved

00C0-00DF

Slave DMA Controller #2

00E0-00EF

System reserved

00F0-00FF

Math Coprocessor

01F0-01F7

IDE Hard Disk Controller

0200-0240h

Mapped to ISA

0240-0260h

Mapped to ISA

0279h

Mapped to ISA

02E8-02EF

Serial Port 4 (COM4)

02F8-02FF

Serial Port 2 (COM2)

0300-0340h

Mapped to ISA

0340-0360h

Mapped to ISA

0378-037F

Parallel Port (Standard and EPP)

03B0-03BB

Video (monochrome)

03C0-03DF

Video (VGA)

03E8-03EF

Serial Port 3 (COM3)

03F0-03F5

Floppy Disk Controller

03F6

IDE Hard Disk Controller

03F7

Floppy Disk Controller

03F8-03FF

Serial Port 1 (COM1)

04D0-04D1

Edge/Level Trigger PIC

0778-077F

Parallel Port (ECP Extensions) (Port 378+400)

0A79h

Mapped to ISA

0CF8-0CFF

PCI Configuration Registers

0CF9

Reset Control Register

Table 3-3. I/O Address Map (Continued)

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