4
Communication Protocol
Types of Serial Communication
Three types of serial communication can be transmitted between the host and DN-700CB:
1.
Control commands sent to DN-700CB from the
host
You can use control commands to make DN-
700CB perform a desired function (such as playing
or skipping a track).
When DN-700CB receives a control command
from the host, DN-700CB executes the command.
2.
Status request commands sent to DN-700CB
from the host
You can use a status request command to
determine the current state of one of DN-700CB’s
components (such as whether there is a disc in the
CD slot, how many tracks are in the current
tracklist, etc.).
When DN-700CB receives a status request
command from the host, DN-700CB answers the
host with the requested status information.
3.
Status information automatically sent to the
host when a change is made from DN-700CB
When a change to DN-700CB is made from the
device itself, DN-700CB automatically sends
status information to the host.
DN-700CB Host
Control
Command
DN-700CB Host
DN-700CB Host
Status
Request
Command
Status
Information
Status
Information
Содержание DN-700CB
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