Communication Protocol; Types Of Serial Communication - Denon DN-700R Serial Command Protocol Manual

Communication Protocol

Types of Serial Communication

Three types of serial communication can be transmitted between the host and DN-700R:
1. Control commands sent to DN-700R from the
host
You can use control commands to make DN-700R
perform a desired function (such as initiating a
recording or playing a track).
When DN-700R successfully receives a control
command from the host, DN-700R sends an ACK
signal to the host and then executes the
command.
2. Status request commands sent to DN-700R
from the host
You can use a status request command to
determine the current state of one of DN-700R's
components (such as the amount of free space left
on the media source or the currently selected
recording input).
When DN-700R successfully receives a status
request command from the host, DN-700R
answers the host with an ACK signal followed by
the requested status information.
3. Status information automatically sent to the
host when a change is made from DN-700R
When certain changes to DN-700R are made from
the device itself, DN-700R automatically sends
status information to the host. When the host
receives automatic status information successfully,
it sends an ACK signal to DN-700R.
DN-700R
DN-700R
Status
Information
DN-700R
Status
Information
Host
Control
Command
Host
Status
Request
Command
Host
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