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CDU-541 CD-ROM DRIVE SCSI INTERFACE MANUAL
Table 5-14: Header Data Format
==============================================================================
Bit!
7
6
5
4
3
2
1
o
Byte I
=============================================================================-
o
I
I
CD-ROM Data Mode
-----1-----------------------------------------------------------------------
1
:
Reserved
-----1-----------------------------------------------------------------------
2
:
Reserved
-----1-----------------------------------------------------------------------
3
!
Reserved
I
-----1-----------------------------------------------------------------------
4
1
(MSB)
-----1---
5
I
-----\---
Absolute CD-ROM Address
6
\
-----1---
7
1
(LSB)
==============================================================================
The CD-ROM Data Mode field shall return the requested logical block data
mode format which is defined as_follows.
Table
5-15:
Logical Block Data Mode Format
==========================================================================
CD-ROM
Mode
User Data Field Contents
(2048 bytes)
Auxialiary Field Contents
(288 bytes)
==========================================================================
OOh
All bytes zero
All bytes zero
01h
User Data
EDC, L-EC symbols
02h
User Data
User Data
:03h to FFh!
Reserved
Reserved
-------------------------------------------------------------------------
5-37
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