CLD-V2800 Level III • Chapter Three

35) INDEX NUMBER REQUEST

CD

Function:

The index number which is currently being played is returned.

Format:

? I

 

Explanation:

Contents of the Index Number Register are returned.

 

The index number is returned with the track number as a 4-digit

 

integer: track number (01-99) and index number (00-99). Correct

 

values will not be shown if the player is not in Random Access

 

Mode, or if the player is in the lead-in or lead-out area of a disc. An

 

error (E04) is returned if this query is sent to the player while a

 

LaserDisc is playing.

 

Execution:

* Play Mode, Track 12, Index 03 of a CD is playing

 

? I <C/R>

1203 <C/R>

36) BLOCK NUMBER REQUEST

CD

Function:

The block number which is currently being played is returned.

Format:

? B

 

Explanation:

Contents of the Block Number Register are returned.

 

The block number is returned as part of a 7-digit integer: minutes

 

(00-59), seconds (00-59) and block number (00-74). Correct values

 

will not be shown if the player is not in Random Access Mode, or if

 

the player is in the lead-in or lead-out area of a disc. An error (E04)

 

is returned if this query is sent to the player while a LaserDisc is

 

playing. Block locations are not available through the on-screen

 

display. If the block number of the disc cannot be read correctly,

 

the previous number will be returned. The value of hours is set to

 

0. An absolute time number is returned.

Execution:

* Play Mode plays to 12 minutes, 05 seconds, block 15 of a CD.

 

? B <C/R>

120515 <C/R>

37) P-BLOCK NUMBER REQUEST

CD

Function:

The current track, index and P-time (elapsed time of current

 

track) numbers are returned.

Format:

? A

 

Explanation:

Contents of the P-Time Number Register are returned.

CLD-V2800 Level III User’s Manual TP 120 v. 1.0 • 10/95

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