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SCSI Interface
SCSI Interface
Introduction
SCSI-1 interface
SCSI-1 status codes
STT20000N Product Manual
The STT20000 SCSI minicartridge drive provides an embedded Small Computer
System Interface (SCSI) controller for communications between the host computer
and the drive. The drive supports the SCSI-1 (ANSI X3.131, 1986) and SCSI-2
(ANSI X3.T92) interfaces. The factory default interface at power up is for the SCSI-2
interface.
The STT20000 SCSI minicartridge drive provides a single-ended SCSI connection.
This chapter summarizes the SCSI-1 and SCSI-2 status codes, message codes,
and commands. Refer to Chapter 3 for specific SCSI cabling and connector
information.
Note: Refer to the SCSI Minicartridge Drive SCSI Manual (P/N
10001652-002) for detailed information about the SCSI interfaces. That
manual includes an alphabetically arranged summary of the STT20000
SCSI minicartridge drive SCSI commands.
The SCSI-1 interface for the drive complies with the ANSI Standard
X3.131-1986. The following tables list the Status Codes, Message Codes, and
Commands, respectively, for this interface.
4-bit Status Code
Bits
4
3
0
0
0
0
0
1
1
0
1
1
2
1
0
Definition
0
0
X
Good Status
0
1
X
Check Condition
0
0
X
Busy
0
0
X
Intermediate Status
0
0
X
Reservation Conflict
Chapter 5
5
Page 33
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