Cambridge Audio Azur 540R V3 Manual

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

Azur 540R v3 Serial Control Protocol V1.0

1.1 RS232 Protocol

The protocol is accessed via the RS232 protocol, i.e. a PC’s rear panel com port.

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.

Command Packet Structure:

Header Command Command Command Footer

Group Number Data

# 1 to 11 , 01 to 19 , XXXX CR

byte num: 1 1 1 2 1 XX 1

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1.2 Command Groups

Commands are split into the following groups:

Command

Group Command Description

1 Amplifier Commands

2 Source Commands

3 Tuner Commands

4 Audio Processing 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

1.3 Commands and Messages

1.3.1 Group 1 - Amplifier Commands

Command Command Description Command Data Example

Number

01 Power State 0 - Standby, 1 - On #1,01,0\r - Put 540R in standb

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 0 - Off, 1 - On #1,11,00\r - 540R mute off

12 Dynamic Range Se

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 Lef

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

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

1.3.2 Group 2 - Source Commands

Command Command Description Command Data Example

Number

01 Input Selec

1 - DVD, 2 - Video 1, 3-Tuner, 4 - Video2, #2,01,02\r - Select Video 1

5 - Video3, 6 - Tape/MD/CDR, 7 - CD/Aux,

8 - 6.1 Direct In

02 Input Select Up No Data #2,02\r - Next input up

03 Input Select Down No Data #2,03\r -Next input down

04 Set input mode 0 - analogue, 1 - Digital #2,04,01\r - digital source selected

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

1.3.3 Group 3 – Tuner Commands

Command Command Description Command Data Example

Number

01 Tuner Stereo/Mono 0 - Stereo, 1 = Mono #3,01,01\r -

uner in mono

02 Frequency Up No Data #3,02\r - Frequency up

03 Frequency down No Data #3,03\r - Frequency down

04 Up No Data #3,04\r - Tuner up

05 Down No Data #3,05\r - Tuner down

06 Tuner Mode 1 - Frequency up/down, 2 - search up/down,

3 - Preset up/down

#3,06,03\r - Tuner up/down control presets

07 Tuner Search Stop No Data #3,07\r - Tuner search stop

08 Tuner Auto Search No Data #3,08\r - Tuner auto search

09 Tuner Band 0 - FM, 1 = AM #3,09,01\r -

uner in AM mode

10 Tuner PTY select

1- News, 2-Affairs, 3-Info, 4-Sport, 5-Educate,

6-Drama, 7-Culture, 8-Science, 9-Varied, 10-

Pop, 11-Rock, 12-MOR, 13-Light, 14-Classics,

15-Other

#3,10,11\r - PTY Rock selected

11 Store Station 1 - preset 1, 2 - preset 2, ….. 15 - preset 15 #3,11,12\r - Store current frequency in preset 12

12 Get Preset 1 - preset 1, 2 - preset 2, ….. 15 - preset 15 #3,12,6\r - Set tuner to preset 6

13 Tuner Display mode 1-Frequency, 2-Program name, 3-Program

Type, 4-Clock time, 5-Radiotext

#3,13, 04\r - Display in clock time mode

14 Get Frequenc

No Data #3,14\r

15 Get Station name No Data #3,15\r

16 Get PTY No Data #3,16\r

17 Stop PTY Select No Data #3,17/r

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

1.3.4 Group 4 - Audio Processing Commands

Command Command Description Command Data Example

Number

01 Set Audio to Stereo 00 = Stereo, 01 = Stereo + sub #4,01,01\r - Audio set to stereo plus sub mode

02 Set PLII/Neo No Data #4,02/r - Cycles to next mode (same as pressing

PLII/NEO button)

03 Set DD/DTS No Data #4,03/r - Cycles to next mode (same as pressing

DD/DTS button)

04 Get Current PLII/Neo/DSP mode No Data #4/04\r

05 Get current DD/DTS mode No Data #4,05\r

06 Set DSP No Data #4,06\r - Cycles to next mode (same as pressing the

DSP button)

1.3.4 Group 5 - Version Commands

Command Command Description Command Data Example

Number

01 Get Main Software Version No Data #5,01,\r - Get software version

02 Get Protocol Version No Data #5,02,\r - Get protocol version

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

1.3.6 Group 6 - Replies from Amplifier Commands

Command Command Description Command Data Example

Number

01 Power State 0 - Standby, 1 - On #6,01,0\r - Put 640R in standb

02 Volume Up -90 to 00 (where -90 = mute, 00 = max

volume #6,02,-16\r - Vol = -16dB

03 Volume Down -90 to 00 (where -90 = mute, 00 = max

volume #6,03,-16\r - Vol = -16dB

04 Bass Up -10 to 10 #6,04,-6\r - Bass = -6db

05 Bass Down -10 to 10 #6,05,-6\r - Bass = -6db

06 Treble Up -10 to 10 #6,06,-7\r -

reble = -7db

07 Treble Down -10 to 10 #6,07,-7\r -

reble = -7db

08 Sub On No Data #6,08\r - Sub woofer on

09 Sub Off No Data #6,09\r - Sub woofer off

10 Set LFE trim 0 = 0db, 1 = -1db… -10 = -10dB #6,10, 03\r - LFE trim set to -3dB

11 Mute State 0 - Off, 1 - On #6,11,00\r - 540R mute off

12 Dynamic Range Se

0 - 0/4, 1 - 1/4, 2 - 2/4, 3 - 3/4, 4 - 4/4 #6,12, 02\r - Set dynamic range limit to 2/4

13 OSD On No Data #6,13\r - OSD On

14 OSD Off No Data #6,14\r - OSD Off

15 OSD Up No Data #6,15\r - OSD up

16 OSD Down No Data #6,16\r - OSD down

17 OSD Lef

No Data #6,17\r - OSD Lef

18 OSD Right No Data #6,18\r - OSD Right

19 OSD Enter No Data #6,19\r - OSD Enter

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

1.3.7 Group 7 - Replies from Source Commands

Command Command Description Command Data Example

Number

01 Input Selec

1 - DVD, 2 - Video 1, 3-Tuner, 4 - Video2, #7,01,2\r - Video 1 selected

5 - Video3, 6 - Tape/MD/CDR, 7 - CD/Aux,

8 - 6.1 Direct In

02 Input Select Up No Data #7,02\r - Next input up

03 Input Select Down No Data #7,03\r -Next input down

04 Set input mode 0 - analogue, 1 - Digital #7,04,01\r - digital input selected

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

1.3.8 Group 8 - Replies from Tuner Commands

Command Command Description Command Data Example

Number

01 Tuner Stereo/Mono 0 - Stereo, 1 = Mono #8,01,01\r -

uner in mono

02 Frequency Up No Data #8,02\r - Frequency up

03 Frequency down No Data #8,03\r - Frequency down

04 Up 1 - command complete, 2 -

uner searchin

#8,04,02\r - Tuner searchin

05 Down 1 - command complete, 2 -

uner searchin

#8,05,01\r - Tuner down executed

06 Tuner Mode 1 - Frequency up/down, 2 - search up/down,

3 - Preset up/down

#8,06,03\r - Tuner up/down control presets

07 Tuner Search Stop xxx.x

#8,07,09525\r - Current frequency is 95.25MHz

08 Tuner Auto Search No Data #8,08\r - Tuner auto search

09 Tuner Band 0 - FM, 1 = AM #8,09,01\r -

uner in AM mode

10 Tuner PTY select

1- News, 2-Affairs, 3-Info, 4-Sport, 5-Educate,

6-Drama, 7-Culture, 8-Science, 9-Varied, 10-

Pop, 11-Rock, 12-MOR, 13-Light, 14-Classics,

15-Other, 16-Searching in progress, 17-

Search failed

#8,10,11\r - PTY Rock selected

11 Store Station 1 - preset 1, 2 - preset 2, ….. 15 - preset 15 #8,11,12\r - Store current frequency in preset 12

12 Get Preset 1 - preset 1, 2 - preset 2, ….. 15 - preset 15 #8,12,6\r - Set tuner to preset 6

13 Tuner Display mode 1-Frequency, 2-Program name, 3-Program

Type, 4-Clock time, 5-Radiotext #8,13, 04\r - Display in clock time mode

14 Get Frequenc

xxx.x

#8,14,09525\r - Current frequency is 95.25MHz

15 Get station name xxxxxxx

#8,15,Radio666\r - Current station name is

Radio666. If no RDS station name available, return

with string of stars, i.e. ********

16 Get PTY

0-No Pty,1- News, 2-Affairs, 3-Info, 4-Sport, 5-

Educate, 6-Drama, 7-Culture, 8-Science, 9-

Varied, 10-Pop, 11-Rock, 12-MOR, 13-Light,

14-Classics, 15-Other

#8,16,11\r - Current PTY is Rock Music

17 Stop PTY Select No Data #8,17\r

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

1.3.9 Group 9 - Replies from Audio Processing Commands

Command Command Description Command Data Example

Number

01 Set Audio to Stereo 00 = Stereo, 01 = Stereo+ SW #9,01,01\r - Audio set to stereo mode plus sub

02 Set PLII/Neo/DSP xxxxxxxx #9,02, PCM + PLIIx Movie \r - Describes the mode it's

just switched to exactly as on front panel

03 DD/DTS xxxxxxxx

#9,03, Dolby Digital (2/0) \r - Describes the mode it's

just switched to, exactly as displayed on the front

panel

04 Get current PLII/Neo/DSP mode xxxxxxxx #9,04, PCM + PLIIx Movie \r - Describes the current

mode

05 Get current DD/DTS mode xxxxxxxx #9,05, Dolby Digital (2/0) \r - Describes the current

mode

1.4.0 Group 10 - Replies from Version Commands

Command Command Description Command Data Example

Number

01 Get Main Software Version X.X #10,01,1.2\r - Software is version 1.2

02 Protocol Version X.X #10,02,1.6\r - Protocol is version 1.6

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