Cambridge audio AZUR 650R User Manual

Azur 650R Serial Control Protocol V1.0

1.1 RS232 Protocol

The protocol is accessed via COM1 i.e. the rear panel RS232C port.

# 1 to 11 , 01 to 19 , XXXX CR

byte num: 1 1 1 2 1 XX 1

Header

1.2 Hardware

Command Command Command

Group Number Data

Footer

Notes:

1) All data consists of ASCII bytes.

2) Settings for RS232 comm port are 9600,N,8,1 with no handshaking.

3) CR is carriage return, ASCII value 13 decimal.

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Pin
Number

2 RX – Serial data receive pin (serial data received by 650R on this pin)
3 TX – Serial data transmit pin (serial data transmitted by 650R on this pin)
5 Ground

Description

1.3 Command Groups

Commands are split into the following groups:

Command
Group

1 Amplifier Commands
2 Source Commands
3 Tuner Commands

4
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

Description

Audio Processing
Commands

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1.4 Commands and Messages

1.4.1 Group 1 - Amplifier Commands

Command
Number

01 Power State 0 - Standby, 1 - On #1,01,0\r - Put 650R in standby
02 Volume Up No Data #1,02\r - Volume up
03 Volume Down No Data #1,03\r -Volume down
04 Bass Up No Data #1,04\r - Bass up
05 Bass Down No Data #1,05\r - Bass down
06 Treble Up No Data #1,06\r - Treble up
07 Treble Down No Data #1,07\r - Treble down
08 Sub On No Data #1,08\r - Sub woofer on
09 Sub Off No Data #1,09\r - Sub woofer Off
10 Set LFE trim 0 = 0db, 1 = -1db… -10 = -10dB #1,10, 03\r - LFE trim set to -3dB
11 Mute State 00 - Off, 01 - On #1,11,00\r - 650R mute off
12 Dynamic Range Set 0 - 0/4, 1 - 1/4, 2 - 2/4, 3 - 3/4, 4 - 4/4 #1,12, 02\r - Set dynamic range limit to 2/4
13 OSD On No Data #1,13\r - OSD On
14 OSD Off No Data #1,14\r - OSD Off
15 OSD Up No Data #1,15\r - OSD up
16 OSD Down No Data #1,16\r - OSD down
17 OSD Left No Data #1,17\r - OSD Left
18 OSD Right No Data #1,18\r - OSD Right
19 OSD Enter No Data #1,19\r - OSD Enter
20 Lip Sync Up No Data #1,20\r - Lip Sync Up
21 Lip Sync Down No Data #1,21\r - Lip Sync Down

Command Description Command Data Example

Gallery Court, Hankey Place, London SE1 4BB England Tel: [phone] Fax: [phone] Web: www.cambridge-audio.com