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Jumper block j5 – Adaptec AHA-1510A User Manual

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AHA-1510A/20A Series User’s Guide

AHA-1510A/20A Series User’s Guide
Stock Number: 510400-00, Rev. C

Page: 2-4

Print Spec Number: 491842-00
Current Date: 11/18/94

ECN Date: 11/29/94

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Jumper Block J5

Pin Pair

Description

DT

Set data transfer mode

DMA enabled = jumper
PIO

(programmed I/O)

= no jumper

DMA transfer mode is not supported under
DOS or Windows. It is supported under
OS/2 on EISA-bus computers.

BT

Enable/disable boot from host adapter BIOS

Boot from host adapter BIOS

= jumper

Do not boot from host adapter = no jumper

M0

No jumper

M1

Enable/disable Fast SCSI

Fast SCSI on = jumper
Fast SCSI off

= no jumper

SN

Enable/disable synchronous negotiation

Synchronous negotiation on

= jumper

Synchronous negotiation off = no jumper

DN

Enable/disable SCSI target disconnect

Permit Disconnects

= jumper

Do not permit Disconnect = no jumper

R-

Enable/disable SCSI Floppy/Floptical support

SCSI Floppy/Floptical on = jumper
Floppy/Floptical off

= no jumper

R-

Enable/disable greater than 1 GB translation

> 1 GByte Translation on = jumper
> 1 GByte Translation off

= no jumper

Default setting

DT BT M0 M1 SN DN R- R-

Default Setting

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