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PTI-255W (VER. 1.01)

DTK COMPUTER, INC.

PTI-255W (VER. 1.01)

Data bus:

32-bit VL-bus

Size:

Three-quarter length, half-height card

Hard drive supported:

Four IDE(AT) drives

Floppy drives supported:

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

CONNECTIONS

Function

Location

40-pin primary IDE(AT) connector

J1

40-pin secondary IDE(AT) connector

J2

34-pin cable connector - floppy drive

J3

16-pin game port

J4

10-pin serial port 1 - internal, 9-pin serial port 1 - external

J5

10-pin serial port 2 - internal

J6

25-pin Parallel port

J7

2-pin connector - drive active LED

J8

DRIVE SPEED CONFIGURATION

Speed

JP1/4

JP1/5

600ns

pins 1 & 2 closed

pins 1 & 2 closed

 

500ns

pins 2 & 3 closed

pins 1 & 2 closed

 

400ns

pins 1 & 2 closed

pins 2 & 3 closed

 

240ns

pins 2 & 3 closed

pins 2 & 3 closed

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Secondary IDE(AT) IOCHRDY signal disabled

JP3

open

 

Secondary IDE(AT) IOCHRDY signal enabled

JP3

closed

Primary IDE(AT) IOCHRDY signal enabled

JP4

closed

 

Primary IDE(AT) IOCHRDY signal disabled

JP4

open

Parallel port is unidirectional

JP6

closed

 

Parallel port is bi-directional

JP6

open

Game port enabled

JP8

closed

 

Game port disabled

JP8

open

IDE(AT) interface enabled

JP1/1

pins 1 & 2 closed

 

IDE(AT) interface disabled

JP1/1

pins 2 & 3 closed

IDE(AT) address is 170h & 1F0h

JP1/2

pins 1 & 2 closed

 

IDE(AT) address is 1F0h

JP1/2

pins 2 & 3 closed

CPU speed is 50MHz

JP1/3

pins 1 & 2 closed

 

CPU speed is 33MHz

JP1/3

pins 2 & 3 closed

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

JP2/1

pins 1 & 2 closed

 

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

JP2/1

pins 2 & 3 closed

Floppy drive address is 3F0h

JP2/2

pins 1 & 2 closed

 

Floppy drive address is 370h

JP2/2

pins 2 & 3 closed

Floppy drive interface enabled

JP2/3

pins 1 & 2 closed

 

Floppy drive interface disabled

JP2/3

pins 2 & 3 closed

SERIAL PORT 1 ADDRESS SELECTION

COM

JP5/1

JP5/2

COM1 (3F8h)

pins 1 & 2 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 2 & 3 closed

pins 1 & 2 closed

SERIAL PORT 2 ADDRESS SELECTION

COM

JP5/3

JP5/4

COM2 (2F8h)

pins 1 & 2 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 2 & 3 closed

pins 1 & 2 closed

PARALLEL PORT ADDRESS SELECTION

LPT

JP5/5

JP6/6

LPT1 (378h)

pins 1 & 2 closed

pins 1 & 2 closed

 

LPT2 (278h)

pins 2 & 3 closed

pins 2 & 3 closed

 

LPT3 (3BCh)

pins 2 & 3 closed

pins 1 & 2 closed

 

Disabled

pins 1 & 2 closed

pins 2 & 3 closed

PARALLEL PORT INTERRUPT SELECTION

IRQ

JP7/1

JP7/1

7

closed

open

 

5

open

closed