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Independent Command Processor
The CLD-V5000 player can be controlled by several different methods: From the
Front Panel Buttons, the Remote Control Unit or Barcode Reader (Level I) or from
an external computer via the RS-232 port (Level III).
An independent command processor inside the player assures the most appropriate
operating environment is used. Because of this, the same commands may perform
differently, depending on the control method.
Most of the commands input to the player have arguments such as frame number,
chapter number, time number, track number or various parameters. An argument
storage area and an address flag indicating the frame, chapter, time, track, index or
block number are provided for each control method. Therefore, arguments input for
one particular control method do not affect operations performed with another
method.
Internal Player Components
Address Specification Flag Register (computer control)
This register indicates whether a particular address argument sent from a
computer is a frame, chapter, track, index, time, or block number.
Digit Buffer (computer control)
This buffer stores the numeric values of arguments sent from an external
computer. The contents of this buffer are sent to the specified registers for
command execution.
Command Processor (computer control)
This processor reads the contents of the RS-232C buffer. It sends the
arguments to the digit buffer, or executes commands.
RS-232C Buffer
This is the RS-232C Input/Output data buffer. Twenty-two bytes are used
for input and another 22 bytes are used for output.
Address Specification Flag Register (manual control)
This register indicates whether the address arguments are frame numbers,
chapter numbers, time numbers or track numbers for normal control
operations.
Digit Buffer (manual control)
This buffer stores the numeric values of arguments for normal control
operations. The contents of this buffer are sent to the specified register for
command execution.
CLD-V5000 Internal Player Controls
C-4 TP 121 v. 1.0 • 1/96 Appendix C CLD-V5000 Internal Player Controls