Table of Contents
Advertisement
6.Command Specification
Page Code
00h
Standard Sense
02h
Disconnect-Reconnect
0Fh
Data Compression Control
10h
Device Configuration
11h
Medium Partitions Parameter
1Ch
Information Exception Control
31h
AIT Device Configuration
32h
Append Partition
33h
Delete Partition
3Fh
Return All Pages
Additional Page Length: Indicates the number of bytes in that page. The value does not, however, include bytes 0
and 1. The length is returned on MODE SENSE and must subsequently be set to the same value when performing
MODE SELECT.
If the page length does not match that expected by the drive a CHECK CONDITION status is returned with the sense
key to set to ILLEGAL REQUEST.
The drive also returns a CHECK CONDITION status with an ILLEGAL REQUEST sense key if the Host sends an
unsupported Page Code, a page field with values that are not supported or are not changeable. In this case, no
parameters will have been changed by the command.
6.7.1. Disconnect-Reconnect Page (02h)
The drive supports the Disconnect-Reconnect Page which has the following format:
Bit
7
Byte
0
PS (0)
1
2
3
4
(MSB)
5
6
(MSB)
7
8
(MSB)
9
10
(MSB)
11
12
Reserved
13
14
15
Buffer Full Ratio, Buffer Empty Ratio, Bus Inactivity Limit and Connect Time Limit fields are not supported by the
drive if set to non-ZERO values a CHECK CONDITION status is returned with ILLEGAL REQUEST sense key set.
Disconnect Time Limit: This field indicates the minimum time in 100 microsecond increments that the drive shall
wait after releasing the SCSI bus before attempting re-selection. The default value is 0.
6-40
Table 6-33: Supported MODE SELECT Page Codes
Description
Table 6-34: Disconnect-Reconnect Page
6
5
Reserved
Buffer Empty Ratio (00h)
Bus Inactivity Limit (00h)
Connect Time Limit (00h)
Fair Arbitration
Parameter List Length
0Ch
0Ch+10h=1Ch
0Ch+10h=1Ch
0Ch+10h=1Ch
0Ch+0Ch=18h (when AIT bit is ZERO)
0Ch+(8+2 xn)=14h + 2xn (when AIT bit is ONE)
0Ch+0Ch=18h
0Ch+0Ah=16h
0Ch+0Ah=16h (only when AIT bit is ONE)
0Ch+0Ah=16h (only when AIT bit is ONE)
0Ch+10h+10h+10h+0Ch+0Ah=5Eh
0Ch+10h+10h+10h+(8+2xn)+0Ch+0Ah+0Ah+0Ah=6Eh+2xn
4
3
Page Code (02h)
Page Length (0Eh)
Buffer Full Ratio (00h)
Disconnect Time Limit
Maximum Burst Size
Reserved
Reserved
Reserved
Reserved
SONY AIT-2 Turbo drive SDX-550V series Ver.1.0
MODE SELECT
n: Partition Number
2
1
0
(LSB)
(LSB)
(LSB)
(LSB)
DTDC
Advertisement
Table of Contents
