Specifications

Chapter 3 Hardware
20 Reference Manual LittleBoard 735
Floppy Drive Interface
The SCH3114I-NU (U15) chip provides the floppy controller and supports one floppy drive as configured.
The floppy signals are provided through the 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 uses 34 pins, 2 rows, odd/even sequence (1, 2) with 0.100" pitch.
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)