16)
STOP MARKER
LD/CD
Function:
Stop marker is set to the specified address.
Format:
Address
S M
Explanation: The specified address is written in the Mark Frame/Time/Block
Register or Mark Chapter/Track Register as indicated by the address
flag, and the completion status “R” is returned immediately. When the
stop marker address is reached in
Play
or
Multi-Speed, or Step Mode
with a CAV Disc,
Still Mode
occurs; with a CLV disc or CD,
Pause Mode
occurs. In both cases, when the stop marker address is reached, the
stop marker is cleared from the mark register. The stop marker is also
cleared when a step command is issued to step through the address
marker on a CAV disc.
Here, the completion status “R” is returned when the command is
received and the stop marker is set, not when the address marker is
reached, as described in the Play command. Issue a disc location
request command (?F,?C,?T,?R etc.) to determine whether not the stop
marker address has been reached. If a Clear or Reject command is
sent before the stop marker is reached, the stop marker in the the
mark register is cleared.
The stop marker is functionally similar to the auto stop operation of
the Play and the Multi-Speed commands. However, the auto stop
and the stop marker return a completion status at different times. In
an auto stop operation, the completion status is returned when the
marked address is reached. In the stop marker operation, the
completion status is returned when the stop marker is set.
The stop
marker command must be used when status requests are sent to the
player before the address marker is reached. It is also useful when the
operation mode is changed before the marked address is reached.
Execution #1: * Still Mode
LD (CAV)
F R 3 2 427 S M P L <C/R>
R <C/R>
* Plays to time number frame value 3 min. 24 sec. 27 frames, then
enters
Still Mode
* Still Mode
3 0 S P 3 5 0 12 S M M F
<C/R>
R <C/R>
* Plays at one-half speed to time number frame value 3min. 50 sec.
12 frames and then enters
Still Mode
Chapter Three • CLD-V2800 Level III
3-20
TP 120 v. 1.0
• 10/95
CLD-V2800 Level III User’s Manual
Still (CAV)
Pause (CLV, CD)
Still (CAV)
Pause (CLV, CD)
Figure 3-J
Play
Play
Auto Play is set
Stop Marker is set (R is returned here)
Mark address, (R is returned here)
Mark address