Application Layer; Mc-8 Asynchronous Notification Packets; Wakeup Notification; Sleep Notification - Lexicon MC-8 User Manual

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to look for a SOP byte and will not process the erroneous application packet. The HOST can use this as
an indicator to retransmit the corrupted packet.

6 Application Layer

6.1 MC-8 Asynchronous Notification Packets

MC-8 has been designed to transmit the asynchronous notification packets following these system
changes:
1. Power On
2. Entering Standby
3. Front Panel Display update
4. Parameter Value Changes.
The notification packets are defined as follows:

6.1.1 Wakeup Notification

By transmitting the Wakeup Notification, the MC-8 indicates the unit has just "powered on" or reset and is
ready to receive host commands. This notification is primarily for the HOST to know the status of the
MC-8.
6.1.1.1 Notification Packet Description
6.1.1.2 Host Response
The MC-8 does not expect any response from the HOST.

6.1.2 Sleep Notification

By transmitting the Sleep Notification, the MC-8 indicates the unit is shutting down into a standby mode.
Because the hard power switch could be activated independently of the MC-8 system software, hard
power down will not be notified. Acknowledgment of the Sleep Notification is not required. This
notification is primarily for the HOST to know the operating status of the MC-8.
6.1.2.1 Notification Packet Description

6.1.3 Front Panel Display

The MC-8 will transmit the front panel display buffer following the update to the MC-8 front panel display.
The MC-8 front panel display is 2 X 20 ASCII character display. The HOST can enable transmission of
this notification message by sending Host Wakeup
Application Header:
Command DC_WAKEUP
Data Count 0
Application Data:
N/A
Application Header:
Command DC_SLEEP
Data Count 0
Application Data:
N/A
(6.3.5 page
MC-8 Serial Communications Protocol
0x01
0x00
0x02
0x00
13). To disable transmission the HOST
8