Chapter Three •
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 | |
| 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 determine CLV time | |
| number frame values on discs encoded with hours, minutes, seconds | |
| and frame numbers, send a ?F to the player. See page | |
| Set, also Appendix | |
| Correct values will not be shown if the player is not in Random | |
| Access Mode, or if the player is in the | |
| 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 | |
| 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 | |
| shown if the player is not in Random Access Mode, or if the player is | |
| in the | |
| 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> |
TP 121 v. 1.0 • 1/96 |