UNIDENTIFIED

CX-I

Q3 /95

Data bus: 8-bit, ISA

Size: Half-length, full-height card

Hard drives supported: Two IDE (AT/XT) Interface drive

Floppy drives supported: None

CONNECTIONS

Function

Location

40-pin IDE (AT/XT) Interface

J2

4-pin connector-drive active LED

J4

BIOS ADDRESS SELECTION

Address

J1/1

J1/2

J1/3

J1/4

»

C8000h

closed

open

open

open

 

CA000h

open

closed

open

open

 

CC000h

open

open

closed

open

 

CE000h

open

open

open

closed

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

IDE (AT/XT) interface enabled

J3

closed

 

IDE (AT/XT) interface disabled

J3

open

»

ALE (Address Latch Enabled) signal enabled

J5

closed

 

ALE (Address Latch Enabled) signal disabled

J5

open

»

PDIAG (Pass Diagnostics) disabled

J6

open

 

PDIAG (Pass Diagnostics) enabled

J6

closed

»

IOCHRDY signal disabled

J7

open

 

IOCHRDY signal enabled

J7

closed

»

AEN (Address Enable) signal disabled

J16

open

 

AEN (Address Enable) signal connected to pin 21

J16/pins 1 & 2

closed

 

IDE connector/ Pins 21 & 37 are connected

J16/pins 2 & 3

closed

»

IRQ 5 select

J17/pins 1 & 2

closed

 

IRQ 5 reserved

J17/pins 2 & 3

closed

»

AT/XT bus drive selected

J10/pins 1 & 2

closed

 

AT/XT bus drive reserved

J10/pins 2 & 3

closed

IDE BUS TYPE SELECTION

Bus Type

J8

J9

J11

J12

J13

J14

J15

»

AT

1 & 2

1 & 2

1 & 2

1 & 2

open

closed

closed

 

XT

2 & 3

2 & 3

2 & 3

2 & 3

closed

open

open

Note: Designated pins are in the closed position.

IDE DRIVE SELECTION

Drive

J18

J19

»

AT

pins 2 & 3 closed

pins 1 & 2 closed

 

XT

pins 2 & 3 closed

pins 2 & 3 closed

 

XT

pins 1 & 2 closed

pins 2 & 3 closed

 

XT

pins 1 & 2 closed

pins 1 & 2 closed