Denon AVR-987 User manual

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DENON AVR/AVC control protocol

Ver. 4.7

Application model :AVR-987

Application terminal : RS-232C

Connector specification

Ⅰ. RS-232C

Connector type : DB-9pin female type, slave straight connection (DCE type)

( 1pin : GND , 2pin : TxD , 3pin : RxD , 5pin : Common(GND) , 4,6,7,8,9pin : NC )

Communication format :

Synchronous system : Tone step synchronization

Communication system : A half duplex

Communication speed : 9600bps

Character length : 8 bits

Parity control : None

Start bit : 1 bit

Stop bit : 1 bit

Communication procedure : Non procedural

Communication data length : 135 bytes (maximum)



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Protocol specification

The following three data forms is defined.

COMMAND : The message sent to a system(AVR/AVC) from a controller(Touch Panel etc.)

A command to a system is given from a controller.

EVENT : The message sent to a controller(Touch Panel etc.) from a system(AVR/AVC)

The result is sent, when a system is operated directly and a state changes.

*The form of EVENT presupposes that it is the same as that of COMMAND.

**Refer to the following table for the contents of COMMAND and EVENT.

RESPONSE : The message sent to a controller(Touch Panel etc.) from a system(AVR/AVC)

if the ‘request command’ (COMMAND+?+CR(0x0D)) has came from a controller.

The RESPONSE should be sent within 200ms of receiving the COMMAND.

*The form of RESPONSE presupposes that it is the same as that of EVENT.

Basic specification : The command by ASCII CODE, parameter expression

*ASCII CODE which can be used is from 0x20 to 0x7F : the alphabet and the number of 0-9 , and space (0x20) , Some signs ,

AND carriage return(0x0D)--- It is used only as a pause sign.

Command structure : COMMAND + PARAMETER + CR(0x0D)

COMMAND : ASCII CODE of 2 characters

ex. SI : Select Input source

MS : surround Mode Setting

MV : Master Volume setting

PW : system Power setting

PARAMETER : ASCII CODE ( up to 25 characters)

ex. DVD : function name

CDR/TAPE-1 : function name

THX SURROUND EX : surround mode name

SUPER STADIUM : surround mode name

*Special Parameter--- ? : for request command

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The example of a command * <CR> is the meaning of 0x0D.

SIDVD<CR> : Select Input source DVD

MSSTEREO<CR> : surround Mode Set to STEREO

MVUP<CR> : Master Volume UP

PWON<CR> : system PoWer ON

PWSTANDBY<CR> : system PoWer STANDBY

SI?<CR> : Request command for now playing input source >> Return RESPONSE ‘SI***<CR>’

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Others

A) COMMAND is receivable also during transmission of EVENT.

B) Since CHANNEL VOLUME changes simultaneously when the SURROUND MODE changes, the value of the channel volume of all channels

returns as EVENT.

C) CHANNEL VOLUME returns the data of ALL channels by the present SURROUND MODE also including an intact channel. In this case,

the data of an intact channel is set to "50".

D) Since SURROUND MODE changes simultaneously when the INPUT source changes, the SURROUND MODE (andalso the value of the channel

volume of all channels , It described in B) ) returns as EVENT.

E) When SURROUND MODE is the same in between INPUT source change before and after, EVENT of SURROUND MODE and CHANNEL VOLUME

does NOT return.

F) Although EVENT of SURROUND MODE returns when the present SURROUND MODE is set up again, CHANNEL VOLUME does NOT return.

G) When SURROUND MODE is changed, before returning SURROUND MODE after change as EVENT, the present SURROUND MODE is returned.

H) The RESPONSE should be sent as opposed to the request command by all the commands with which an EVENT exists , not need to

the another request commands(ex. SV command).

I) The PARAMETER (with COMMAND and RESPONSE, EVENT) of minimum level of MASTER VOLUME defines “99”.

J) If the MASTER VOLUME & CHANNEL VOLUME set with 0.5dB step, the PARAMETER (with COMMAND and RESPONSE, EVENT) defines three

ASCII characters as bellows.

ex. MASTER VOLUME = +1.0dB : MV81<CR>

+0.5dB : MV805<CR>

0dB : MV80<CR>

-0.5dB : MV795<CR>

-1.0dB : MV79<CR>

| |

-79.5dB : MV005<CR>

-80.0dB : MV00<CR>

--- : MV99<CR>

* At the **.0dB step, only uses two ASCII characters as PARAMETER, same as usual.

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COMMAND and PARAMETER list

COMMAND PARAMETER function example

PW ON POWER ON/STANDBY change PWON<CR>

STANDBY PWSTANDBY<CR>

? Return PW Status PW?<CR>

MV UP MASTER VOLUME UP/DOWN , direct change to **dB MVUP<CR>

DOWN MVDOWN<CR>

** **:00 to 99 by ASCII , 80=0dB, 99=---(MIN) MV80<CR>

? Return MV Status MV?<CR>

CV FL UP CHANNEL VOLUME UP/DOWN , direct change to **dB CVFL UP<CR>

FL DOWN ---FRONT Lch CVFL DOWN<CR>

FL ** **:38 to 62 by ASCII , 50=0dB CVFL 50<CR>

FR UP CVFR UP<CR>

FR DOWN ---FRONT Rch CVFR DOWN<CR>

FR ** **:38 to 62 by ASCII , 50=0dB CVFR 50<CR>

C UP CVC UP<CR>

C DOWN ---CENTERch CVC DOWN<CR>

C ** **:38 to 62 by ASCII , 50=0dB CVC 50<CR>

SW UP CVSW UP<CR>

SW DOWN ---SUBWOOFERch CVSW DOWN<CR>

SW ** **:00,38 to 62 by ASCII , 50=0dB,00=OFF CVSW 50<CR>

SL UP CVSL UP<CR>

SL DOWN ---SURROUND Lch CVSL DOWN<CR>

SL ** **:38 to 62 by ASCII , 50=0dB CVSL 50<CR>

SR UP CVSR UP<CR>

SR DOWN ---SURROUND Rch CVSR DOWN<CR>

SR ** **:38 to 62 by ASCII , 50=0dB CVSR 50<CR>

SBL UP ---SURROUND BACK Lch (SBch 2SP) CVSBL UP<CR>

SBL DOWN CVSBL DOWN<CR>

SBL ** **:38 to 62 by ASCII , 50=0dB CVSBL 50<CR>

SBR UP ---SURROUND BACK Rch (SBch 2SP) CVSBR UP<CR>

SBR DOWN CVSBR DOWN<CR>

SBR ** **:38 to 62 by ASCII , 50=0dB CVSBR 50<CR>

MV , CV COMMAND : "*" parameter uses two or three ASCII characters. (see page4 J) section)

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COMMAND PARAMETER function example

CV SB UP ---SURROUND BACKch (SBch 1SP) CVSB UP<CR>

SB DOWN CVSB DOWN<CR>

SB ** **:00 to 99 by ASCII , 50=0dB CVSB 50<CR>

? Return CV Status CV?<CR>

MU ON OUTPUT MUTE ON/OFF change MUON<CR>

OFF MUOFF<CR>

? Return MU Status MU?<CR>

SI PHONO Select INPUT source SIPHONO<CR>

CD SICD<CR>

TUNER SITUNER<CR>

DVD SIDVD<CR>

VDP SIVDP<CR>

TV SITV<CR>

DBS SIDBS<CR>

VCR-1 SIVCR-1<CR>

VCR-2 SIVCR-2<CR>

VCR-3 ---Invalid at AVR-987 SIVCR-3<CR>

V.AUX SIV.AUX<CR>

CDR/TAPE SICDR/TAPE<CR>

? Return SI Status SI?<CR>

ZM ON MAIN-ZONE ON/OFF change at AVR-987 ZMON<CR>

OFF ZMOFF<CR>

? Return ZM Status ZM?<CR>

Z2 PHONO MULTI ZONE-2 mode set, and select source at AVR-987 Z2PHONO<CR>

| ---The name of PARAMETER is |

V.AUX the same as that of the time of SI COMMAND. Z2V.AUX<CR>

SOURCE MULTI ZONE-2 mode cancel at AVR-987 Z2SOURCE<CR>

CV COMMAND : "*" parameter uses two ASCII characters. (see page4 J) section)

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COMMAND PARAMETER function example

Z2 UP MULTI ZONE-2 VOLUME UP/DOWN , direct change to **dB Z2UP<CR>

DOWN at AVR-987(Power Amp Assign=ZONE2 Only) Z2DOWN<CR>

** **:10 to 99 by ASCII , 80=0dB, 99=---(MIN) Z280<CR>

ON MULTI ZONE-2 ON/OFF change at AVR-987 Z2ON<CR>

OFF Z2OFF<CR>

? Return Z2 Status Z2?<CR>

Z2MU ON ZONE2 OUTPUT MUTE ON/OFF change Z2MUON<CR>

OFF Z2MUOFF<CR>

? Return Z2MU Status Z2MU?<CR>

Z3 PHONO ---Invalid at AVR-987 Z3PHONO<CR>

| |

V.AUX Z3V.AUX<CR>

SOURCE ---Invalid at AVR-987 Z3SOURCE<CR>

UP ---Invalid at AVR-987 Z3UP<CR>

DOWN Z3DOWN<CR>

** Z380<CR>

ON ---Invalid at AVR-987 Z3ON<CR>

OFF Z3OFF<CR>

? ---Invalid at AVR-987 Z2?<CR>

Z3MU ON ---Invalid at AVR-987 Z3MUON<CR>

OFF Z3MUOFF<CR>

? ---Invalid at AVR-987 Z3MU?<CR>

SR PHONO REC SELECT mode set , and select source SRPHONO<CR>

| ---The name of PARAMETER is |

V.AUX the same as that of the time of SI COMMAND. SRV.AUX<CR>

SOURCE REC SELECT mode cancel SRSOURCE<CR>

? Return SR Status SR?<CR>

Z2 COMMAND : "*" parameter uses two ASCII characters. (see page4 J) section)

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EVENT PARAMETER function example

SD AUTO set DIGITAL INPUT AUTO mode SDAUTO<CR>

PCM set DIGITAL INPUT force PCM mode SDPCM<CR>

DTS set DIGITAL INPUT force DTS mode SDDTS<CR>

ANALOG set force ANALOG INPUT mode SDANALOG<CR>

EXT.IN-1 ---Set EXT.IN mode at AVR-987 SDEXT.IN-1<CR>

EXT.IN-2 ---Invalid at AVR-987 SDEXT.IN-2<CR>

? Return SD Status SD?<CR>

SV DVD VIDEO SELECT mode set , and select source SVDVD<CR>

VDP SVVDP<CR>

TV SVTV<CR>

DBS SVDBS<CR>

VCR-1 SVVCR-1<CR>

VCR-2 SVVCR-2<CR>

VCR-3 ---Invalid at AVR-987 SVVCR-3<CR>

V.AUX SVV.AUX<CR>

SOURCE VIDEO SELECT mode cancel SVSOURCE<CR>

? Return SV Status SV?<CR>

MS DIRECT SURROUND mode set MSDIRECT<CR>

PURE DIRECT MSPURE DIRECT<CR>

STEREO MSSTEREO<CR>

MULTI CH IN ---This is received as "SATNDARD". MSMULTI CH IN<CR>

MULTI CH DIRECT MSMULTI CH DIRECT<CR>

MULTI CH PURE D MSMULTI CH PURE D<CR>

DOLBY PRO LOGIC All are received as "STANDARD" , MSDOLBY PRO LOGIC<CR>

DOLBY PL2 the surround mode which changed return as EVENT. MSDOLBY PL2<CR>

DOLBY PL2x MSDOLBY PL2X<CR>

DOLBY DIGITAL MSDOLBY DIGITAL<CR>

DOLBY D EX MSDOLBY D EX<CR>

DTS NEO:6 All are received as "DTS SURROUND", MSDTS NEO:6<CR>

DTS SURROUND MSDTS SURROUND<CR>

DTS ES DSCRT6.1 MSDTS ES DSCRT6.1<CR>

DTS ES MTRX6.1 MSDTS ES MTRX6.1<CR>

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EVENT PARAMETER function example

MS DOLBYH/P ---Invalid at AVR-987 model MSDOLBYH/P<CR>

DTS+DOLBYH/P ---Invalid at AVR-987 model MSDTS+DOLBYH/P<CR>

HOME THX CINEMA ---Invalid at AVR-987 model MSHOME THX CINEMA<CR>

THX5.1 ---Invalid at AVR-987 model MSTHX5.1<CR>

THX U2 CINEMA ---Invalid at AVR-987 model MSTHX U2 CINEMA<CR>

THX MUSIC MODE ---Invalid at AVR-987 model MSTHX MUSIC MODE<CR>

THX GAMES MODE ---Invalid at AVR-987 model MSTHX GAMES MODE<CR>

THX6.1 ---Invalid at AVR-987 model MSTHX6.1<CR>

THX SURROUND EX ---Invalid at AVR-987 model MSTHX SURROUND EX<CR>

WIDE SCREEN MSWIDE SCREEN<CR>

5CH STEREO Both are received as "5CH/7CH STEREO" , MS5CH STEREO<CR>

7CH STEREO the surround mode which changed return as EVENT. MS7CH STEREO<CR>

SUPER STADIUM MSSUPER STADIUM<CR>

ROCK ARENA MSROCK ARENA<CR>

JAZZ CLUB MSJAZZ CLUB<CR>

CLASSIC CONCERT MSCLASSIC CONCERT<CR>

MONO MOVIE MSMONO MOVIE<CR>

MATRIX MSMATRIX<CR>

VIDEO GAME MSVIDEO GAME<CR>

VIRTUAL MSVIRTUAL<CR>

MPEG2 AAC ---Invalid at AVR model MSMPEG2 AAC<CR>

AAC+DOLBY EX ---Invalid at AVR model MSAAC+DOLBY EX<CR>

? Return MS Status MS?<CR>

USER1 USER1-3 MODE SELECT MSUSER1<CR>

USER2 MSUSER2<CR>

USER3 MSUSER3<CR>

USER1 MEMORYUSER1-3 MODE MEMORY MSUSER1 MEMORY<CR>

USER2 MEMORY MSUSER2 MEMORY<CR>

USER3 MEMORY MSUSER3 MEMORY<CR>

USER ? Return MSUSER Status MSUSER ?<CR>

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EVENT PARAMETER function example

PS TONE DEFEAT ON PARAMETER setting PSTONE DEFEAT ON<CR>

TONE DEFEAT OFF TONE DEFEAT ON/OFF PSTONE DEFEAT OFF<CR>

TONE DEFEAT ? Return PSTONE DEFEAT Status PSTONE DEFEAT ?<CR>

SB:MTRX ON SURROUND BACK SP MODE set PSSB:MTRX ON<CR>

SB:NON MTRX PSSB:NON MTRX<CR>

SB:PL2xCINEMA PSSB:PL2X CINEMA<CR>

SB:PL2xMUSIC PSSB:PL2X MUSIC<CR>

SB:OFF PSSB:OFF<CR>

SB: ? Return PSSB: Status PSSB: ?<CR>

CINEMA EQ.ON CINEMA EQ. ON/OFF PSCINEMA EQ.ON<CR>

CINEMA EQ.OFF PSCINEMA EQ.OFF<CR>

CINEMA EQ.OFF Return PSCINEMA EQ.Status PSCINEMA EQ. ?<CR>

MODE:MUSIC CINEMA / MUSIC / GAME / PL mode change PSMODE:MUSIC<CR>

MODE:CINEMA (This parameter can change DOLBY PL2,PL2x,NEO:6 mode.) PSMODE:CINEMA<CR>

MODE:GAME ---SB=ON：PL2x mode / SB=OFF：PL2 mode PSMODE:GAME<CR>

MODE:PRO LOGIC --- GAME can change DOLBY PL2 & PL2x mode PSMODE:PRO LOGIC<CR>

--- PL can change ONLY DOLBY PL2 mode

MODE: ? Return PSMODE: Status PSMODE: ?<CR>

ROOM EQ:AUDYSSEY ROOM EQ mode direct change PSROOM EQ:AUDYSSEY<CR>

ROOM EQ:FRONT PSROOM EQ:FRONT<CR>

ROOM EQ:FLAT PSROOM EQ:FLAT<CR>

ROOM EQ:MANUAL PSROOM EQ:MANUAL<CR>

ROOM EQ:OFF PSROOM EQ:OFF<CR>

ROOM EQ: ? Return PS ROOM EQ: Status PSROOM EQ: ?<CR>

DELAY UP AUDIO DELAY UP/DOWN , direct change to ***dB PSDELAY UP<CR>

DELAY DOWN ***:000 to 999 by ASCII , 000=0ms, 200=200ms PSDELAY DOWN<CR>

DELAY *** --- AVR-987 can be operated from 0 to 200 PSDELAY 200<CR>

NIGHT ON NIGHT MODE ON/OFF PSNIGHT ON<CR>

NIGHT OFF (This parameter can change DOLBY DIGITAL SIGNAL ) PSNIGHT OFF<CR>

FRONT SPA Switch THE FRONT SP A/B/A+B PSFRONT SPA<CR>

FRONT SPB PSFRONT SPB<CR>

FRONT A+B PSFRONT A+B<CR>

FRONT? Return PSFRONT: Status PSFRONT ?<CR>

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