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Lexicon
1 Documents
The following documents should also be used with this document to understand how this protocol
can be used with an RV8.
070-15838 User Guide, RV-8
2 Definitions
User Parameter:
A user changeable variable that stores a specific value that describes an
operating condition for the RV8 system.
HOST:
The device initiating or receiving the serial communication packets to/from
the RV8.
RV8:
The Lexicon product receiving or transmitting the serial communication
packets to/from the HOST.
Nonvolatile FLASH:
The area of memory in an RV8 that stores users adjustable parameters.
2.1 Protocol Version Cross-reference
All references to RV8 shall be valid unless specifically documented otherwise.
3 Abbreviations
SOP
Start of Packet
EOP
End of Packet
ACK
Acknowledge
NAK
No Acknowledge
FPD
Front Panel Display
4 General Description
The intention of the RV8 serial port and protocol communication is for an external connected
HOST to control and obtain status from the RV8. The protocol has been designed to focus on
two specific goals. The first is HOST uploading and downloading of RV8 configuration, and
system/effect setups. The second is HOST control of basic user adjustable parameters.(i.e.
input, volume, balance...)
HOST
The RV8 uses simple notification, command, response and acknowledgment packets to have
communication transactions with a given HOST. This protocol is designed for point to point
communication between a HOST and RV8. The RV8 Protocol is a 3 layered system. The RV8
serial protocol allows for the RV8, or the HOST, to initiate a communication transaction. Most
transactions are initiated by the HOST. RV8 then responds to the HOST command with either a
response or acknowledgment packet. There are a few asynchronous notifications that RV8
Rs-232 Serial Link
RV-8 Serial Communications Protocol
Lexicon RV-8
CD VOL
5
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