Documents; Definitions; Protocol Version Cross-Reference; Abbreviations - Lexicon RV8 V1.0 - SERIAL COMMUNICATIONS PROTOCOL DEFINITION REV 1-7 Manual

Lexicon, Inc.
RV-8 Serial Communications Protocol

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:
HOST:
RV8:
Nonvolatile FLASH:

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 initiates indicating system
© 2004 Lexicon, Inc. All rights reserved.
A user changeable variable that stores a specific value that describes an
operating condition for the RV8 system.
The device initiating or receiving the serial communication packets to/from the
RV8.
The Lexicon product receiving or transmitting the serial communication packets
to/from the HOST.
The area of memory in an RV8 that stores users adjustable parameters.
Rs-232 Serial Link
Printed on: 01/18/05
Lexicon RV-8
CD VOL
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