31)
TIME REQUEST
Function:
The time code which is currently being played is returned (CLV).
Format:
? T
Explanation:
Contents of the current Time Register are returned.
When a CLV disc is being played, time numbers are contained in
the Frame Register. Time numbers consist of the hour and
minutes, while most consist of extended time numbers: hour,
minutes, seconds, and frames. When a disc not encoded with
seconds is played, the seconds unit is fixed to 0.
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. If a time number on the disc cannot be correctly read, the
previous number is used.
Note:
CLV frame numbers are part of the extended time number. If
frame numbers are encoded on a disc, they are not shown when the
address flag is set to Time nor are they returned when a Time
Request is sent to the player. To access CLV frame numbers, the
frame address flag must be set by sending the Frame Mode (F)
command. The Frame Number Request (?F) command the queries
the player and the time number frame value is returned. (See page
4-21 for Frame Mode; see page 4-31 for Frame Number Request.)
Execution:
* Play Mode
? T <C/R>
0 3 2 1 3 <C/R>
(0 hour, 32 minutes, 13 seconds)
32)
CHAPTER NUMBER REQUEST
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. Some discs 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.
Execution:
* Play Mode
? C <C/R>
1 2 <C/R>
Chapter Four • LD-V4400 Level I & III
4-32
TTP 116 v1.1 • 9/93
LD-V4400 Level I & III User’s Manual
Содержание LD-V4400 Level I
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