Cambridge Audio Azur 640R Manual

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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 Command Command
Notes:
Header Group Number Data Footer
1) All data consists of ASCII bytes.
# 1 to 11 , 01 to 19 , XXXX CR
2) Settings for RS232 comm port are 9600,N,8,1 with no handshaking.
byte num: 1 1 1 2 1 XX 1
3) CR is carriage return, ASCII value 13 decimal.
1.2 Command Groups
Commands are split into the following groups:
Command
Group 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

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1.4 Commands and Messages
1.4.1 Group 1 - Amplifier Commands
Command
Number Command Description Command Data Example
01 Power State 0 - Standby, 1 - On #1,01,0\r - Put 640R 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 - 640R 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

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1.4.2 Group 2 - Source Commands
Command
Number Command Description Command Data Example
01 Input Select #2,01,02\r - Select Video 1
00 = Tuner, 01 - DVD, 02 - Video 1, 03 -
Video 2, 04 - Video3, 05 - Rec 1,06 - Aux,
07 - CD, 08 - Rec 2, 09 - ####, 10 - 7.1
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 00 - analogue, 01 - Digital #2,04,01\r - digital source selected
05 Set Video Source 0 - S Video, 1 - Component, 2 - Composite #2,05,01\r - Component video source

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1.4.3 Group 3 – Tuner Commands
Command
Number Command Description Command Data Example
01 Tuner Stereo/Mono 0 - Stereo, 1 = Mono #3,01,01\r - tuner 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 #3,06,03\r - Tuner up/down control presets
1 - Frequency up/down, 2 - search
up/down, 3 - Preset up/down
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 - tuner 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 #3,13, 04\r - Display in clock time mode
1-Frequency, 2-Program name, 3-Program
Type, 4-Clock time, 5-Radiotext
14 Get Frequency 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

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1.4.4 Group 4 - Audio Processing Commands
Command
Number Command Description Command Data Example
01 Set Audio to Stereo 00 = Stereo, 01 = Stereo+ SW #4,01,01\r - Audio set to stereo mode plus sub
02 Set PLII/Neo/DSP No Data
#4,02\r - cycles to next mode (same as
pressing the PLII/Neo/DSP button)
03 DD/DTS No Data
#4,03\r - cycles to next mode (same as
pressing the 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
1.4.5 Group 5 - Version Commands
Command
Number Command Description Command Data Example
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

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1.4.6 Group 6 - Replies from Amplifier Commands
Command
Number Command Description Command Data Example
01 Power State 0 - Standby, 1 - On #6,01,0\r - Put 640R in standby
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 - treble = -7db
07 Treble Down -10 to 10 #6,07,-7\r - treble = -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 - 640R mute off
12 Dynamic Range Set 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 Left No Data #6,17\r - OSD Left
18 OSD Right No Data #6,18\r - OSD Right
19 OSD Enter No Data #6,19\r - OSD Enter

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1.4.7 Group 7 - Replies from Source Commands
Command
Number Command Description Command Data Example
01 Input Select
1 - DVD, 2 - Video 1, 3 - Video 2, 4 -
Video3, #7,01,2\r - Video 1 selected
5 - Rec 1, 6 - Aux, 7 - CD, 8 - Rec 2,
9 - Tuner, 10 - 7.1 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
05 Set Video Source 0 - S Video, 1 - Component, 2 - Composite #7,05,02\r - Composite video source selected

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1.4.8 Group 8 - Replies from Tuner Commands
Command
Number Command Description Command Data Example
01 Tuner Stereo/Mono 0 - Stereo, 1 = Mono #8,01,01\r - tuner 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 - tuner searching #8,04,02\r - Tuner searching
05 Down 1 - command complete, 2 - tuner searching #8,05,01\r - Tuner down executed
06 Tuner Mode #8,06,03\r - Tuner up/down control presets
1 - Frequency up/down, 2 - search
up/down, 3 - Preset up/down
07 Tuner Search Stop xxx.xx #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 - tuner 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 #8,13, 04\r - Display in clock time mode
1-Frequency, 2-Program name, 3-Program
Type, 4-Clock time, 5-Radiotext
14 Tuner Display mode #8,14, 04\r - Display in clock time mode
1-Frequency, 2-Program name, 3-Program
Type, 4-Clock time, 5-Radiotext
14 Get Frequency xxx.xx #8,14,09525\r - Current frequency is 95.25MHz
15 Get station name xxxxxxxx
#8,15,Radio666\r - Current station name is
Radio666. If no RDS station name availible,
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

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1.4.9 Group 9 - Replies from Audio Processing Commands
Command
Number Command Description Command Data Example
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
1.4.10 Group 10 - Replies from Version Commands
Command
Number Command Description Command Data Example
01 Get Main Software Version X.X #10,01,1.2\r - Software is version 1.2
02 Protocol Version X.X #10,03,1.6\r - Protocol is version 1.6
1.4.11 Group 11 - Error Messages
Command Command Description Command Data Example
Number
01 Command Group Unknown No Data #5,01,\r - Command group error
02
Command Number in Group
Unknown No Data #5,02,\r - Command number error
03 Command Data Error No Data #5,03,\r - Command data error
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Cambridge Audio Ltd 2007