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Media Pro 4000 Brief                                    January 14, 2000

File: AlcornMcBride_DVM2_BR011400.TXT
Module: ICM4020, SEM4020
Title: Pioneer LDP Driver with Alcorn McBride's DVM2
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c2000 Anitech Systems Incorporated, 25021 Anza Drive, Valencia, CA 91355

This Driver is available in SEM-4020 Firmware SEMdl063.cod and later.
This Driver is not available in ICM-4020 Firmware (under development).

Introduction:

The Alcorn McBride DVM2 (Digital Video Machine 2)(tm) is an MPEG2 (et al)
video player, from source material stored on its removable hard drive.
One of its several control options is a serial connection using a variant
of the protocol used for the Pioneer Laser Disk players.  Technical
information for the DVM2 can be found at www.alcorn.com.

The MP4000 Pioneer LDP driver can be used to control the DVM2 on the
ICM4020 or SEM4020.  The driver converts certain applicable Media Pro
Control Language statements into appropriate messages for the DVM2.
The useful commands are described here.  The DVM2 has the minor limitation
that, unlike an LDP, it cannot accept compound commands.

                           --o----o----o--

Pioneer LDP Driver Translations:

The driver translates five MPCL statements, and supports also the 'SEND'
statement.  MPCL statements that generate compound commands (i.e., PLAY
FROM) are not listed.

SEEK 'dvm2' TO fn ;

  transmits "fnSE<CR>", causing the dvm2 to seek to (prepare to play)
  file number fn.  See the DVM2 manual for particulars.

PLAY 'dvm2' ;

  transmits "PL<CR>", causing the dvm2 to play the previously 'SEEKed'
  video file.

SET 'dvm2' VIDEO 0/1 ;

  turns the screen to black (0) or video (1) without stopping playback.

SET 'dvm2' AUDIO 0/1 ;

  not usable; generates 4AD and 7AD for the Pioneer audio register.

STOP 'dvm2' ;

  stops playback; uses the ST (still) command so video is not turned off.

SEND 'dvm2' "anystring\xD" ;

  transmits the character string included within the quotes, verbatim, to
  the DVM2 device.  This can be used to transmit commands that are
  not directly supported by the driver.

  this can be used to send a loop command to the player, for example:
  SEND 'dvm2' "LP\xD" ;

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Specifications subject to change at any time.

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Anitech Systems Inc., 25021 Anza Drive, Valencia, CA 91355 USA.
Phone (661) 257-2184     Fax (661) 257-2025
email Mail@Anitech-Systems.com     Web http://www.Anitech-Systems.com

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