Pioneer LASERDISC/COMPACT DISC PLAYERS CLD-V2400 User Manual

Page 93

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4.7.4 Request Commands

31)

FRAME NUMBER REQUEST

LD

Function:

The frame number which is currently being played is returned.

Format:

? F

Explanation:

Contents of the current Frame Register are returned.

During playback of a CAV disc, a 5-digit frame number is returned.
During playback of a CLV disc, a 6-digit frame number is returned.
(See Appendix J-1, Notes, #5, for details.) Correct values are not
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.

As seen in the example, continuous frame numbers may not be
received due to timing delays between the computer and the
player. If a frame number code on the disc cannot be correctly
read, the previous value is used. An error (E04) is returned if this
query is sent to the player while a CD is playing.

Execution:

* Play Mode (CAV)

* Play Mode (CLV)

? F <C/R>

0 2 0 4 4 <C/R>

? F <C/R>

0 10 4 4 2<C/R>

? F <C/R>

0 2 0 4 5 <C/R>

? F <C/R>

0 10 4 4 6<C/R>

? F <C/R>

0 2 0 4 5 <C/R>

? F <C/R>

0 10 5 0 2<C/R>

? F <C/R>

0 2 0 4 7 <C/R>

? F <C/R>

0 10 5 0 7<C/R>

32)

CHAPTER NUMBER REQUEST

LD

Function:

The chapter number which is currently being played is returned.

Format:

? C

Explanation:

Contents of the Chapter Number Register are returned.

The chapter number is a 2-digit integer (00-79). Some LaserDiscs
are not encoded with chapter numbers. When playing a disc
without chapters, an error is returned when this request is issued.
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 CD is playing.

Execution:

* Play Mode
? C <C/R>

1 2 <C/R>

CLD-V2600 / 2400 Level I & III • Chapter Four

CLD-V2600 / 2400 Level I & III User’s Manual

TP 117

v. 2.0 • 12/93

4-31

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