Application Layer; Rv-8 Asynchronous Notification Packets; Wakeup Notification; Sleep Notification - Lexicon RV-8 V1.10 - SERIAL COMMUNICATIONS PROTOCOL DEFINITION REV 1-7 Manual

Lexicon, Inc.
RV-8 Serial Communications Protocol
continues 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.

7 Application Layer

7.1 RV-8 Asynchronous Notification Packets

RV-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:

7.1.1 Wakeup Notification

By transmitting the Wakeup Notification, RV-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 RV-
8.
7.1.1.1 Notification Packet Description
7.1.1.2 Host Response
The RV-8 does not expect any response from the HOST.

7.1.2 Sleep Notification

By transmitting the Sleep Notification, RV-8 indicates the unit is shutting down into a standby mode.
Because the hard power switch could be activated independently of the RV-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 RV-8.
7.1.2.1 Notification Packet Description

7.1.3 Front Panel Display

RV-8 will transmit the front panel display buffer following the update to the RV-8 front panel display. The
RV-8 front panel display is 2 X 20 ASCII character display. The HOST can enable transmission of this
© 2005 Lexicon, Inc. All rights reserved.
Application Header:
Command DC_WAKEUP
Data Count 0
Application Data:
N/A
Application Header:
Command DC_SLEEP
Data Count 0
Application Data:
N/A
Printed on: 07/26/05
0x01
0x00
0x02
0x00
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