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MC-1165A Hard Disk/Floppy Controller Settings and Configuration






MAPLE SYSTEMS

MC-1165A

Data Bus: 16-bit, ISA

Size: Three-quarter-length, full-height card

Hard Drives Supported: Two ESDI drives

Floppy Drives Supported: Two 360KB, 720KB, 1.2MB, and 1.44MB drives

CONNECTIONS

Function

Location

34-pin data cable connector - floppy drive

J2

34-pin control cable connector - hard drive

J3

20-pin data cable connector - drive 0

J4

20-pin data cable connector - drive 1

J5

4-pin connector - drive active LED

J22

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Virtual split disabled

J1

pins 1 & 2 open

 

Virtual split enabled

J1

pins 1 & 2 closed

Factory configured - do not alter

J1

pins 3 & 4 open

Port addresses are 1F0-1F7 and 3F0-3F7h

J7

pins 1 & 2 open

 

Port addresses are 170-177 and 370-377h

J7

pins 1 & 2 closed

Floppy drive enabled

J7

pins 3 & 4 open

 

Floppy drive disabled

J7

pins 3 & 4 closed

Single speed floppy enabled

J8

open

 

Dual speed floppy enabled

J8

closed

Hard Drive Interrupt is IRQ 14

J9

pins 2 & 3 closed

 

Hard Drive Interrupt is IRQ 15

J9

pins 1 & 2 closed

Note:Pins 3 & 4 on Jumper J1 are Not used.

BIOS ADDRESS

Address

J6/pins 1 & 2

J6/pins 3 & 4

J6/pins 5 & 6

C8000h

open

open

open

D4000h

closed

open

open

D0000h

open

closed

open

D8000h

closed

closed

open

CC000h

open

open

closed

DC000h

closed

open

closed

Disabled

open

closed

closed








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