Denon AVC-3570 Control Protocol PDF
Summary of Content for Denon AVC-3570 Control Protocol PDF
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DENON AVR/AVC control protocol Ver. 3.18
Application model : AVR-3803(AVC-3570) From Serial Number XXX1512251 and up Application terminal : Serial Port
Connector specification
Connector type : 3.5mm Stereo Mini Plug ( Tip: RXD , Middle Band: TXD , Base: GND)
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 *
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) AVR-3803 can control MASTER VOLUME & CHANNEL VOLUME with 0.5dB step, but this COMMAND cant send direct change with 0.5dB
accuracy.(It can adjust with UP/DOWN PARAMETER.) J) In AVR-3803, the RESPONSE of MASTER VOLUME & CHANNEL VOLUME still returned **(2 characters) with round off a *.5dB step. K) The PARAMETER (with COMMAND and RESPONSE, EVENT) of minimum level of MASTER VOLUME and defines 99.
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L) COMMAND and PARAMETER list COMMAND PARAMETER function example PW ON POWER ON/STANDBY change PWON
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COMMAND PARAMETER function example CV SB UP ---SURROUND BACKch (SBch 1SP) CVSB UP
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COMMAND PARAMETER function example Z2 PHONO MULTI ZONE-2 mode set , and select source Z2PHONO
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EVENT PARAMETER function example MS DIRECT SURROUND mode set MSDIRECT
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EVENT PARAMETER function example PS TONE DEFEAT ON PARAMETER setting PSTONE DEFEAT ON
****.** MHz at FM band (<050000 is FM.) TF105000
TP UP TUNER PRESET CH UP/DOWN , direct change to No.** TPUP
(PRESET No.A1)
TM TUNER BAND , MODE Select AM ---Band set to AM TMAM
TF, TP, TM COMMAND : '*' parameters can NOT operate when INPUT source isnt TUNER.
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EVENT(or RESPONSE) and PARAMETER list EVENT PARAMETER function example *RES. PW ON POWER ON/STANDBY change PWON
*RES. : NOT returns '*' parameters as RESPONSE.
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EVENT PARAMETER function example *RES. ZM ON MAIN-ZONE ON/OFF change ZMON
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EVENT PARAMETER function example *RES. TP **(PRESET No.) TUNER PRESET change to No.** TPA1
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