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Cambridge Audio Azur 640R Supplementary Manual
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Cambridge Audio Azur 640R Supplementary Manual

Serial control protocol v1.13
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Azur 640R Serial Control Protocol V1.13
1.1

RS232 Protocol

The protocol is accessed via COM1 i.e. the rear panel RS232C port.
Command
Header
Group
#
1 to 11
byte num:
1
1
1.2

Command Groups

Commands are split into the following groups:
Command
Description
Group
1
Amplifier Commands
2
Source Commands
3
Tuner Commands
Audio Processing
4
Commands
5
Version Commands
6
Replies from Amplifier Commands
7
Replies from Source Commands
8
Replies from Tuner Commands
9
Replies from Audio Processing Commands
10
Replies from Version Commands
11
Error Messages
Gallery Court, Hankey Place, London SE1 4BB England Tel: +44 (0)20 7940 2200 Fax: +44 (0)20 7940 2233 Web: www.cambridge-audio.com
Command
Command
Number
Data
,
01 to 19
,
XXXX
1
2
1
XX
Notes:
Footer
1) All data consists of ASCII bytes.
CR
2) Settings for RS232 comm port are 9600,N,8,1 with no handshaking.
1
3) CR is carriage return, ASCII value 13 decimal.

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Summary of Contents for Cambridge Audio Azur 640R

  • Page 1: Rs232 Protocol

    Azur 640R Serial Control Protocol V1.13 RS232 Protocol The protocol is accessed via COM1 i.e. the rear panel RS232C port. Command Command Header Group Number 1 to 11 01 to 19 byte num: Command Groups Commands are split into the following groups:...

  • Page 2: Commands And Messages

    Commands and Messages 1.4.1 Group 1 - Amplifier Commands Command Command Description Command Data Number Power State 0 - Standby, 1 - On Volume Up No Data Volume Down No Data Bass Up No Data Bass Down No Data Treble Up No Data Treble Down No Data...
  • Page 3 1.4.2 Group 2 - Source Commands Command Command Description Command Data Number 00 = Tuner, 01 - DVD, 02 - Video 1, 03 - Input Select Video 2, 04 - Video3, 05 - Rec 1,06 - Aux, 07 - CD, 08 - Rec 2, 09 - ####, 10 - 7.1 Direct In Input Select Up No Data...
  • Page 4 1.4.3 Group 3 – Tuner Commands Command Command Description Command Data Number Tuner Stereo/Mono 0 - Stereo, 1 = Mono Frequency Up No Data Frequency down No Data No Data Down No Data Tuner Mode 1 - Frequency up/down, 2 - search up/down, 3 - Preset up/down Tuner Search Stop No Data...
  • Page 5 1.4.4 Group 4 - Audio Processing Commands Command Command Description Number Set Audio to Stereo Set PLII/Neo/DSP DD/DTS Get current PLII/Neo/DSP mode Get current DD/DTS mode 1.4.5 Group 5 - Version Commands Command Command Description Command Data Number Get Main Software Version No Data Get Protocol Version No Data...
  • Page 6 1.4.6 Group 6 - Replies from Amplifier Commands Command Command Description Command Data Number Power State 0 - Standby, 1 - On -90 to 00 (where -90 = mute, 00 = max Volume Up volume -90 to 00 (where -90 = mute, 00 = max Volume Down volume Bass Up...
  • Page 7 1.4.7 Group 7 - Replies from Source Commands Command Command Description Command Data Number 1 - DVD, 2 - Video 1, 3 - Video 2, 4 - Input Select Video3, 5 - Rec 1, 6 - Aux, 7 - CD, 8 - Rec 2, 9 - Tuner, 10 - 7.1 Direct In Input Select Up No Data...
  • Page 8 1.4.8 Group 8 - Replies from Tuner Commands Command Command Description Command Data Number Tuner Stereo/Mono 0 - Stereo, 1 = Mono Frequency Up No Data Frequency down No Data 1 - command complete, 2 - tuner searching Down 1 - command complete, 2 - tuner searching Tuner Mode 1 - Frequency up/down, 2 - search up/down, 3 - Preset up/down...
  • Page 9 Command Data Error Information in this document has been carefully checked for accuracy; however, Cambridge Audio's policy is one of continuous improvement, therefore design and specifications are subject to change without prior notice. If you notice any errors please feel free to email us at: support@cambridgeaudio.com. This document contains proprietary information protected by copyright. All rights are reserved.