Ciprico Rimfire 3880 Command Operation

User’s Guide 21020285 D

Chapter 6 Target Mode Pass-through Commands

Command Operation Page 6 - 7

Command Operation

In this section, the sequence of events that can be expected and the parts that

the adapter and Host must play are described.

Sequence of

Events—

The following sequence must occur to ensure proper operation of Target Mode:.

1. Host allocates 32 bytes of memory for the Target Selection Data

Structure, to be used by the adapter when it is selected by an initiator.

Note

When Target Mode is

terminated, whe ther by a

Disable Target Mode

command or by a SCSI

bus Reset, the Target

Selection Data Structure

will be written by the

adapter, with the TME

bit of the Flags field

cleared. Additionally, if

a SCSI bus reset

occurred, an error of 27H

will be reported in the

Error field

2. The Host issues a Target Mode Enable command to the RF3880. The

address of the Target Selection Data Structure is passed in the

command.

3. The adapter is ready to accept selection by an initiator and will remain

so until a SCSI Reset occurs or the Host issues a Target Mode Disable

command.