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CI-91 (SMD)

UNIDENTIFIED

CI-91 (SMD)

Card Type

Hard drive controller

Hard Drives supported

Two IDE (AT/XT) drives

Floppy drives supported

Two 360KB, 720KB, 1.2MB, or 1.44MB drives

Data Bus

16-bit ISA

Card Size

Half-length, full-height

   

CONNECTIONS

Function

Label

Function

Label

9-pin serial port 1 - external

J1

10-pin serial port 2 - internal

JP4

25-pin parallel port - external

J2

4-pin connector - drive active LED

JP5

40-pin IDE(AT) connector

JP1

16-pin game port

JP6

34-pin cable connector - floppy drive

JP3

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

Single hard drive connected to controller

JP2

Closed

Two hard drives connected to controller

JP2

Open

PC/XT mode enabled

JP13

Pins 1 & 2 closed

PC/AT mode enabled

JP13

Pins 2 & 3 closed

Floppy drive interface enabled

JP14

Pins 2 & 3 closed

Floppy drive interface disabled

JP14

Pins 1 & 2 closed

IDE(AT) interface address is 316h, 317h, 110h

JP15

Pins 1 & 2 closed

IDE(AT) interface address is 376h, 377h, 170h

JP15

Pins 2 & 3 closed

IDE(AT) interface enabled

JP16

Pins 2 & 3 closed

IDE(AT) interface disabled

JP16

Pins 1 & 2 closed

Floppy drive order is normal (A:, B:)

JP17

Pins 2 & 3 closed

Floppy drive order is reversed (B:, A:)

JP17

Pins 1 & 2 closed

Floppy drive address is 3F0h

JP18

Pins 1 & 2 closed

Floppy drive address is 370h

JP18

Pins 2 & 3 closed

Parallel port is uni-directional

JP20

Closed

Parallel port is bi-directional

JP20

Open

PARALLEL PORT ADDRESS SELECTION

Setting

JP11

JP12

LPT1 (378h)

Pins 2 & 3 closed

Pins 1 & 2 closed

LPT2 (278h)

Pins 1 & 2 closed

Pins 2 & 3 closed

LPT3 (3BCh)

Pins 2 & 3 closed

Pins 2 & 3 closed

Disabled

Pins 1 & 2 closed

Pins 1 & 2 closed

SERIAL PORT 1 ADDRESS SELECTION

Setting

JP7

JP8

COM1 (3F8h)

Pins 2 & 3 closed

Pins 1 & 2 closed

COM3 (3E8h)

Pins 1 & 2 closed

Pins 2 & 3 closed

COM4 (2E8h)

Pins 2 & 3 closed

Pins 2 & 3 closed

Disabled

Pins 1 & 2 closed

Pins 1 & 2 closed

SERIAL PORT 2 ADDRESS SELECTION

Setting

JP9

JP10

COM2 (2F8h)

Pins 2 & 3 closed

Pins 1 & 2 closed

COM3 (3E8h)

Pins 2 & 3 closed

Pins 2 & 3 closed

COM4 (2E8h)

Pins 1 & 2 closed

Pins 2 & 3 closed

Disabled

Pins 1 & 2 closed

Pins 1 & 2 closed

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

JP19/1

JP19/2

JP19/3

IRQ3

Open

Closed

Open

IRQ4

Closed

Open

Open

IRQ5

Open

Open

Closed

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

JP19/4

JP19/5

JP19/6

IRQ3

Closed

Open

Open

IRQ4

Open

Closed

Open

IRQ5

Open

Open

Closed

PARALLEL PORT INTERRUPT SELECTION

IRQ

JP19/7

JP19/8

IRQ5

Open

Closed

IRQ7

Closed

Open