BusLogic BT-956C, User Manual

Configure Adapter

Configure Adapter options let you customize key parameters in adapter

card operation. When you select this option, a display like the following

appears:

Host Adapter Interrupt Channel 

ISA DMA Channel Emulation

DMA Transfer Rate 

Host Adapter SCSI ID

SCSI Parity

Host Adapter Low Byte Termination

Host Adapter High Byte Termination

Host Adapter Interrupt Trigger Type

Host Adapter Interrupt PIN

11

N/A

7

On

On

On

Level

A

To change a value for any   the options, 

 move to the desired param-

eter using the Up and Down arrow keys and press <ENTER>. A pop-up

menu listing possible values for this parameter appears. An asterisk   in

the option display indicates the current value for that parameter. Choose a

new value from the pop-up list and press <ENTER>. If you make any con-

figuration changes, 

 prompts you to confirm your changes.

When you select Yes, any configuration changes you have made are stored

in Electrically Erasable Programmable Read Only Memory (EEPROM) and

are recalled upon system reset.

If you enter No, your changes are canceled.

Table 3-2. Configure Adapter Option Descriptions

Option

Value

Description

This value is automatically assigned by the host system’s

11, 12,

motherboard BIOS. 

15

ISA DMA
Channel
Emulation

None

Use this option to change the DMA channel. While only ISA
platform host adapters actually use the DMA channel for 

tern memory data transfers, a channel selection may be

7

needed where ISA DMA emulation is required to support old-
er versions of device drivers developed for the ISA bus.

Table 3-2. Configure Adapter Option Descriptions (Continued)

Option

Value

Description

Data Xfer

N/A

Rate

Not applicable to this product.

Adapter
SCSI ID

o-7

Use this option if you need to change the adapter’s SCSI ID

on the SCSI bus. This ID should remain unchanged, even
where there are multiple SCSI adapters, unless the adapters

o-15

are attached to a common SCSI bus cable. 

S C S I   P a r i t y  

O n

Off

This setting allows you to enable or disable parity checking

by the adapter on the SCSI bus. Disable parity checking if it
is not supported by the SCSI device. Refer to the device
manual for more information. Press <ENTER> to toggle be-

tween selections. There are 8 bits of data plus one bit of par-

ity on a standard SCSI bus. Def=On

H/A Low

Byte

Termination

 High

Byte

Termination

On

Off

 options allow you to enable or disable

host adapter SCSI termination. Low Byte terminates data
bits O-7. High Byte terminates data bits 8-15.

 Low Byte and High Byte on 

when only one connec-

tor is used.

 Low Byte and High Byte off 

when both 68-pin 

 are used with 

 devices.

 only High Byte on 

when one 68-pin and the 

connectors are used, or when both 

 connectors are

used and one is used for 

 devices.

 Low Byte only on is not supported.

Press 

 to toggle between selections. See “Termi-

nating SCSI Devices” Section 2 for more details.

 termination is set using the 

 terminators.

Def= On

Adapter

Level

Interrupt

Use this option to select the Edge trigger type if your system

Trigger Type

Edge

does not support the Level trigger 

pe. Refer to our 

erboard documentation for more

in ormation. 

De = Level

Adapter

A

Interrupt Pin

Use this option to select another interrupt channel where

shared interrupts are not supported. For example, if a 

D

ond adapter cannot share the same interrupt with the 
er, you must assign it a new interrupt value. 

3-6   Using the 

 Utility

Using the 

 Utility