Chapter 7 Board-control Commands

SCSI Hard Reset (10H)

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SCSI Hard

Reset (10H)

Command

Format

The SCSI Hard Reset command simply asserts the reset (RST) signal on the SCSI bus. It will abort all commands being executed, even those being executed by devices that are currently disconnected. For this reason, it should only be used as a drastic means of recovery.

The Parameter Block for the SCSI Hard Reset command has this format:

Address

 

Byte Memory Address

 

 

Offset

Offset + 0

Offset + 1

 

Offset + 2

 

Offset + 3

 

 

 

 

 

 

 

 

 

00H

 

Command Identifier

 

 

 

 

 

 

 

 

 

04H

 

Reserved

 

 

 

Adapter ID = FFH

 

 

 

 

 

 

08H

 

 

Reserved

 

 

 

 

 

 

 

 

0CH

 

 

Reserved

 

 

10H

Command = 10H

Reserved

 

 

Reserved

 

 

 

 

 

 

 

14H

 

 

Reserved

 

 

 

 

 

 

 

 

18H

 

 

Reserved

 

 

 

 

 

 

 

 

 

Description of Fields

Table 88: SCSI Hard Reset Parameter Block

Each field of the SCSI Hard Reset Parameter Block is described below:

Command Identifier

The Command Identifier field is used to identify the Status Block associated with a Parameter Block. It must be a unique value.

Adapter ID

This field identifies the type of command being issued. This is a Board-control command. The value in this field must be FFH.

Command Code

The command code for this Board-control command is 10H.

User’s Guide

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Image 155
Ciprico Rimfire 3880 manual Board-control Commands Scsi Hard Reset 10H, Scsi Hard Reset Parameter Block