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33)
TIME NUMBER REQUEST
LD
(CLV Only)
& CD
Function: The time number indicating the current disc address is returned
when a CLV LaserDisc or when a CD is played.
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 encoded on most discs manufactured
since the early 80’s consist of extended time numbers: hour, minutes,
seconds, and frames. The CLD-V2400 will access the hours, minutes
and seconds encoded on the disc. Older discs may only be encoded
with hours and minutes. When a disc not encoded with seconds is
played, the seconds unit is fixed to 0. To access CLV time number
frame values on discs encoded with hours, minutes, seconds and
frame numbers, send a ?F to the player. See page 4-31, Frame Set,
also Appendix J-1, Notes, #5.
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. When a CD is played, the player returns
a four digit number minutes (00-99) and seconds (00-59). A single
side of a CD contains a maximum of 74 minutes of playing time.
Execution #1: * Play Mode, CLV LaserDisc playing
(LD’s) ? T <C/R> 0 3 2 1 3 <C/R>
(0 hour, 32 minutes, 13 seconds)
Execution #2: * Play Mode, CD playing
(CD’s) ? T <C/R> 0 3 2 1 <C/R>
(3 minutes, 21 seconds)
34)
TRACK NUMBER REQUEST
CD
Function: The track number which is currently being played is returned.
Format: ? R
Explanation: Contents of the Track Number Register are returned.
The track number is a 2-digit integer. 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 of a CD is playing
? R <C/R> 1 2 <C/R>
Chapter Four • CLD-V2600 / 2400 Level I & III
4-32 TP 117 v. 2.0 • 12/93 CLD-V2600 / 2400 Level I & III User’s Manual