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FD/HD/TD Controller

UNIDENTIFIED

FD/HD/TD Controller

Data bus: 16-bit,ISA

Size: Half-length, half-height card

Hard drives supported: Two MFM ST506 drives

Floppy drives supported: Two 360KB, 720KB, 1.2MB, 1.44MB

Sector interleave: 1:1

CONNECTIONS

Function

Location

34-pin control cable connector-floppy drive

J1

50-pin control cable connector-tape drive

J2

20-pin data cable connector-drive 0

J3

20-pin data cable connector-drive 1

J4

34-pin control cable connector-hard drive

J5

2-pin connector-drive active LED

J6

TAPE DRIVE I/O PORT ADDRESS

Address

Jumper W4

Jumper W5

Jumper W6

 

208h

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

 

108h

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

 

218h

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

118h

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Reserved for Phase Lock Loop Feedback circuit

W1

pins 1 & 2 closed

Reserved for Read Gate

W1

pins 1 & 2 closed

Floppy drive port address is 3F0-3F7h

W7

pins 2 & 3 closed

 

Floppy drive port address is 370-377h

W7

pins 1 & 2 closed

Hard drive port address is 1F0-1F7h

W8

pins 2 & 3 closed

 

Hard drive port address is 170-177h

W8

pins 1 & 2 closed

Reserved for Read Data Window

W9

pins 1 & 2 closed

Reserved for Read Data Window

W10

pins 1 & 2 closed

Frame ground and signal ground

W11

pins 1 & 2 closed

Frame ground and signal ground

W12

pins 1 & 2 closed

INTERRUPT REQUEST

IRQ

SW1/switch 1

SW1/switch 2

SW1/switch 3

SW1/switch 4

 

IRQ10

on

off

off

off

 

IRQ11

off

on

off

off

 

IRQ12

off

off

on

off

IRQ15

off

off

off

on

DMA CHANNEL

Channel

SW1/switch 5 and 8

SW1/switch 6 and 9

SW1/switch 7 and 10

DRQ5

on

off

off

 

DRQ6

off

on

off

 

DRQ7

off

off

on