Reference Guide

Chapter 4 SCSI Commands

MODE SELECT (6) / (10) Command (15h / 55h)

DLT-S4 Interface Reference Guide 156

Changeable Parameters

Within

MODE SELECT 4

Table 88 lists the MODE SELECT command’s changeable parameters and

their default, minimum, and maximum values. Descriptions of the

various parameters are provided in the discussions of the different

MODE

SELECT

mode pages.

Table 88 Changeable Mode

Parameters Within MODE

SELECT

Note: Parameter rounding is supported for all parameters except the

Block Descriptor Length parameter.

Page: Parameter Default Minimum Maximum

Header: Buffered Mode, Device Specific Byte 1 0 1

Block Descriptor Length 08h 00h 08h

Block Descriptor: Block Length 0 0 FFFFFCh

Read / Write Error Recovery (01h): PER bit 0 0 1

Control Mode (0Ah): Report Log Exception Condition 0 0 1

Control Mode (0Ah): Autoload Mode 0 0 2

Data Compression (0Fh): Data Compression Enable 1 0 1

Disconnect / Reconnect (02h): Maximum Burst Size 0080h 0000h FFFFh

Device Configuration (10h): Write Delay Time 64h 64h 1964h

Device Configuration (10h): Synchronize at Early Warning 1 0 1

Device Configuration (10h): Select Data Compression Algorithm 1 0 1

TapeAlert (1Ch): DExcpt 1 0 1

TapeAlert (1Ch): Perf 0 0 1

TapeAlert (1Ch): Test 0 0 1

TapeAlert (1Ch): MRIE 3 0 6

TapeAlert (1Ch): Test Flag 0 0

1. All values between the minimum and maximum must be an even multiple of 4.