Mode Select Pages; Page Code One - Sony CDU-541 Interface Manual

CDU-541 CD-ROM DRIVE SCSI INTERFACE MANUAL
5.3. CD-ROM Page Descriptions
5.3.1. MODE SELECT Pages
Table 5-32: Page Codes
==============================================================================
Page Code
01h
02h
07h
08h
09h
Description
Read Error Recovery Parameters
Disconnect/Reconnect Control Parameters
Verify Error Recovery Parameters
CD-ROM Parameters
CD-ROM Audio Control Parameters
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5.3.1.1. Page Code One
Table 5-33: Page Code One: Read Error Recovery Parameters
==============================================================================
Bitl
Byte
I
7
6
5
4
3 2
1
o
==============================================================================
0:
Reserved: _ Page Code (Olh) :
-----1-----------------------------------------------------------------------1
, I
D~_~_o~o_ Leng~h
(06h)
I
... I .. """' ....
~"""""''-....
""'. I
-----i-----------------------------------------------------------------------i
2
i
Error Recovery
i
-----i-----------------------------------------------------------------------i
3
I
Read Retry Count
i
-+---------------------------------------------------------------------i
4 Reserved
I
-----------------------------------------------------------------------i
5 Reserved :
-----------------------------------------------------------------------1
6
I
Reserved
I
-----1-----------------------------------------------------------------------:
7
I
Reserved
I
==============================================================================
The implementation of error recovery procedures for CD-ROM devices is
markedly different than those used for magnetic medium disc drives. At least
one level of error correction (i.e. CIRC) is required to unscramble the data
stream. Therefore the performance of the drive may differ substantially from
what would be expected by sending the same error recovery parameters to a
magnetic medium device.
5-65