Reference Guide

Chapter 4 SCSI Commands
LOG SELECT Command (4Ch)
DLT-S4 Interface Reference Guide 60
LOG SELECT Log Page
Format
4
Each log page begins with a 4-byte header followed by n number of log
parameter blocks—one block for each parameter code. Each block, except
for parameter code 05h, comprises 8 bytes. The parameter block for page
code 05h is 12 bytes.
Figure 23 LOG SELECT Log
Page — Data Format
Table 35 LOG SELECT Log
Page Header — Field
Descriptions
Bit
Byte
7 6 5 4 3 2 1 0
0 Page Code
1 Reserved
2 – 3
(MSB)
Page Length (n – 3)
(LSB)
Log Parameters
4 Log Parameter (First)
x + 3 Length (x)
.
.
n — y + 1 Log Parameter (Last)
n Length (y)
Field Description
Page Code Specifies the log page to which this
LOG SELECT
command is directed.
Page Length Specifies the total number of bytes contained in this
log page, not including the 4 bytes that make up the
header.
Log Parameters Use one block for each parameter code.