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CDU-541 CD-ROM DRIVE SCSI INTERFACE MANUAL
5.2.6.
PLAY AUDIO Co_and
==============================================================================
~~-
Bitl
Byte
1
7
6
5
4
3
2
1
o
==============================================================================
o
1
Operation Code (C8h)
1
-----1-----------------------------------------------------------------------1
ilLogical Unit Number:
Reserved
1
-----1-----------------------------------------------------------------------1
2
1
(MSB)
I
-----1---
---I
3
1
I
-----1---
Logical Block Address
---I
4
I
1
-----1---
---I
5
1
(LSB)
I
-----1-----------------------------------------------------------------------1
6
I
Reserved
1
-----1-----------------------------------------------------------------------1
7
I
(MSB)
1
-----1---
Transfer Length
---I
8
1
(LSB)
1
-----1-----------------------------------------------------------------------1
9
1
-
Control Byte
1
==============================================================================
The PLAY AUDIO command requests that the target play audio starting at the
specified logical block address for the specified transfer length.
The audio
is output as specified by the audio control parameters.
This command returns the status byte when the address requested is found.
If the address is not found , or if the ready condition does not exist, or if
the address is not within an audio track, a CHECK CONDITION status will be
returned and the appropriate sense key set.
If the transfer length is zero this command seeks to the specified logical
block address and enters the hold track state.
The drive is in a pause
condition, issuing a PAUSE command with the pause bit set to zero will begin
audio play.
5-16
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