Application Layer; Rv8 Asynchronous Notification Packets; Wakeup Notification; Sleep Notification - Lexicon RV-8 V2.0 - SERIAL PROTOCOL DEFINITIONS REV 1-8 Manual

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process the erroneous application packet. The HOST can use this as an indicator to retransmit
the corrupted packet.
In addition, each byte of a packet must be received sequentially and within the
INTER_PACKET_TIME. If any of the bytes within a packet transmission exceeds the
INTER_PACKET_TIME, the RV8 will respond by transmitting a NAK packet with an error code
DC_ERR_INVALID_PACKET. The RV8 then 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 RV8 Asynchronous Notification Packets

RV8 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, RV8 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 RV8.
7.1.1.1 Notification Packet Description
7.1.1.2 Host Response
The RV8 does not expect any response from the HOST.

7.1.2 Sleep Notification

By transmitting the Sleep Notification, RV8 indicates the unit is shutting down into a standby
mode. Because the hard power switch could be activated independently of the RV8 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 RV8.
7.1.2.1 Notification Packet Description
Application Header:
Command DC_WAKEUP
Data Count 0
Application Data:
N/A
Application Header:
Command DC_SLEEP
Data Count 0
Application Data:
N/A
RV-8 Serial Communications Protocol
0x01
0x00
0x02
0x00
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